Multiply the result by 100. Try the given examples, or type in your own Example: Choose a point to start with. 3. The scale factor is 2 , so each of the sides of the enlarged triangle should be double the sides of the original triangle. We also use third-party cookies that help us analyze and understand how you use this website. A scale factor of 2 and -2 is chosen. Negative scale factors in the higher GCSE only. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. "Enlargement." If you are asked to give a single transformation make sure it is a single transformation, not 2 or more. To use a centre of enlargement we need to draw straight lines from the centre of enlargement through the vertices of the original shape. For enlargements state scale factor and the coordinates of the centre of enlargement. Enlarge the triangle ABC by scale factor \frac{1}{2} about the point O. (b) On the diagram, draw an image of triangle after it is reflected in the line y = x. Label your image C. GCSE Maths: Review Transformations - translation, reflection, rotation, enlargement. Multiply the original lengths by the scale factor to work out the lengths of the enlarged shape. Calculate the scale factor. The centre of enlargement is point O, the origin. Calculus: Integral with adjustable bounds. Kindly mail your feedback tov4formath@gmail.com, How to Graph Linear Equations in Slope Intercept Form, When a dilation in the coordinate plane has the origin as the center of, dilation, we can find points on the dilated image by multiplying the. and for . How to translate a shape given the translation vector? The numbers a, b, and c are the coefficients of the equation . Triangle A has been enlarged by scale factor -3 about the point O. I only wish the other vendors we work with were as thoughtful and conscientious as y'all. Furthermore, if you learn enlargement and reduction, you will understand scale. Also, the shape of the figure is the same. An enlargement makes a shape larger or smaller. The centre of enlargement is point P. Choose a point to start with. If you like the page then tweet the link using the button on the right. example. This calculator allows you to enter the following components: 1. Measure the distance from point O to point A. We use essential and non-essential cookies to improve the experience on our website. Shape A has been enlarged by scale factor \frac{1}{2} to make shape B. Centre of enlargement is a point which tells you where to draw an enlargement. You also have the option to opt-out of these cookies. Prepare your KS4 students for maths GCSEs success with Third Space Learning. The triangle XYZ has been enlarged by a scale factor of 2. Find the centre of enlargement. GCSE Maths revision Exam paper practice & help. On the diagram mark the centre of enlargement. For example, if the side length is doubled, the corresponding side is doubled. of Model Theory to Algebra, Analysis, and Probability. To calculate the scale factor we need to divide an enlarged length by the corresponding original length. An enlargement is a type of transformation . Enlargement of a rectangle. The scale factor is 3 , so each of the sides of the enlarged triangle should be 3 times bigger than the sides of the original triangle, 4. This website uses cookies to improve your experience while you navigate through the website. (d) Reflect shape A in the line y = 3 and label it shape E. The length of sides remain in the same proportion to each other. Enlargements Practice Questions Click here for Questions . Necessary cookies are absolutely essential for the website to function properly. Two items of information are required to enlarge a shape: the Centre of Enlargement and the Scale Factor. Check also that the new shape is twice as large as the original shape. Angles Do Not Change in Enlargement and Reduction. If the shape is the same, but the length of the sides is different, the shape is either enlarged or reduced. Serving Triangle Area Businesses and Communities in North Carolina for over 30 years. Example: (e) Reflect shape A in the line y = -0.5 and label it shape F. 2. (f) Reflect shape A in the line y = x and label it shape G. So far we discussed how scale factor affects the size, area, and volume of any object. This category only includes cookies that ensures basic functionalities and security features of the website. Draw a ray line from point O through point A and extend the line. Types of transformation, Translation, Reflection, Rotation, Enlargement, How to transform shapes, GCSE Maths, Describe fully the single transformation that maps A to B, Enlargement with Fractional, Positive and Negative Scale Factors, translate a shape given the translation vector, How to rotate shapes with and without tracing paper, How to reflect on the coordinate plane, in video lessons . But opting out of some of these cookies may affect your browsing experience. What information do you need to fully describe an enlargement? This will help you to understand the size of shapes. This is 5 along from the centre of enlargement; and 1 up. The size of the figure depends on how many times the length of the sides is increased. The corresponding angles are identical but each side in shape B is half the size of the original shape. A scale factor can be used to enlarge or reduce a shape. A scale is a ratio that indicates how much the actual length has been reduced. is an enlargement of Since the scale factor is 3, the rule to get, the coordinates of the vertices of the image is, The rectangle JKLM shown on the grid is the pre-image. In nonstandard analysis, let be a set of urelements, and let be the superstructure This is 5 along from the centre of enlargement; and 1 up. Enlargement. 6. When we reflect a shape, we flip it over a line of symmetry or mirror. Find more pairs of corresponding vertices. Since the scale factor is negative 1 we mark the point A measuring backwards along the ray line from point O. Draw ray lines from the centre of enlargement through the vertices of the original shape. Which is an example of an enlargement in maths? in exactly the same way. One vertex of the triangle is at (2, 2). When a figure is made smaller, it is reduction. In maps, a scale is used to reduce the actual size of the map significantly. if and only if every concurrent binary relation satisfies the following: There is an element of the range of such that for every in the domain of , the pair is in the relation . Likewise, the corresponding sides are important for enlargement and reduction. So the term maps is often used in questions. These are called ray lines. To calculate the scale factor we need to divide an enlarged length by the corresponding original length. . A missing length on a reduction/enlargement figure can be calculated by finding its linear scale factor. An Weekly online one to one GCSE maths revision lessons delivered by expert maths tutors. Also, the corresponding angles are the same. The rectangle JKLM shown on the grid is the pre-image. Draw a ray line from point O through point C and extend the line. Try the free Mathway calculator and If you check this map, you will see that the orange frame is marked as 1 km. The new triangle is labelled ABC. Apart from the stuff given above, if you need any other stuff in math, please use our google custom search here. Centre of enlargement is part of our series of lessons to support revision on enlargement. Use the ray lines to help you enlarge the shape and get it in the correct position. Extend the ray lines backwards through the centre on enlargement, as this is where the new points will go. Calculte the coordinated of the point that Q is mapped onto. The sides of the enlarged triangle should be 3 times bigger than the original shape. Enlargement with scale factor Enlargements Enlargement and the scale factor Centre of Enlargement New Resources Knight's tour (with draggable start position) Spherical Coordinates Arc Length S = R Trapezoid Median Discovery Subtraction up to 20 - ? (a) Reflect shape A in the x-axis and label it shape B. As you can see, the lengths of all the sides are doubled. Enlargements will preserve the angles of the shape. Plot the points (1,1), (2,1) and (1,2) and connect the dots to make a polygon. There are two types of such figures: enlargement and reduction. This entry contributed by Matt Insall factor is 'k', the algebraic representation of the dilation is, The triangle PQR shown on the grid is the pre-image. P is mapped onto (31,14). List the coordinates of the vertices of the pre image. Either manually adjust the factor using the slider, or use an animation. DPI Calculator Reflection, rotation and enlargement from GCSE mathematics, foundation level. It is used often as the centre of enlargement. GRAPHING ENLARGEMENTS When a dilation in the coordinate plane has the origin as the center of dilation, we can find points on the dilated image by multiplying the x and y coordinates of the original figure by the scale factor. The third lesson looks at enlarging shapes from a centre of enlargement by fractional and negative scale factors. There are also enlargement worksheets based on Edexcel, AQA and OCR exam questions, along with further guidance on where to go next if youre still stuck. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. For example, if the scalefactor is 'k', the algebraic representation of the dilation is. Measure the distance from point O to point A. In order to enlarge a shape using a centre of enlargement: Get your free centre of enlargement worksheet of 20+ questions and answers. Measure these new distances from point O and put marks for the new points. In order to find out how long the distance shown on a map actually is, we need to learn about the concept of scale. The origin of a coordinate grid has the coordinates (0,0) . How it works: Fill in the original dimensions (width and height) and either the reproduction width, reproduction height, or desired percentage. The origin of a coordinate grid has the coordinates (0,0) . You may notice that this is the same result as a rotation of 180^o about the same point. Enlarge the shaded shape with scale factor 2 about the point. Translation, Reflection, Rotation and Enlargement. These lessons help GCSE/IGCSE Maths students learn about different types of Transformation: If we use the heights of the rectangles: 3. You can make a map by reducing the actual length of the land by the same percentage. Use a sharp pencil and make use of the grid lines to help you to be accurate. Draw ray lines going through point B and point C.Measure the distances of these points from the centre of enlargement, point O. When an object is enlarged the object and the image are similar shapes. https://mathworld.wolfram.com/Enlargement.html. (higher). We're very proud . Find the Corresponding Sides and Calculate the Lengths, On a Map, Scale Reduces Length Significantly. example. Therefore, the length of $b$ is 4 cm. Check us out! Shape A has been enlarged to make shape B. Future height or width Using the image size calculator is easy: 1. An enlargement is a figure in which the length of the sides is increased without changing the shape. An enlargement increases or decreases the size of the shape ( object ). Working out the problem by hand we get: [ (1,445 - 1,250)/1,250] 100. Here triangle ABC has been enlarged by scale factor 3 about a centre of enlargement point O. The enlarged shape is known as an image. When you make a figure larger, it is an enlargement. Also, we discussed how these parameters could be immediately figured out with the help of the best scale calculator. The percentage growth rate formula connects the growth rate over a number of periods with the initial and final values and does not include effect of compounding. On the diagram mark the centre of enlargement. The following is reduction. An enlargement is a type of transformation . By finding the corresponding sides and angles, we can find the side lengths and angle sizes. The increase in size from one shape. Draw ray lines going through point B and point C.Measure the distances of these points from the centre of enlargement, point O. The new shape ( image ) is a similar shape. Hey Michelle, For the correct coordinates of the centre of enlargement. scale factor 2 about the purple point Understand simply how to reflect shapes in vertical and horizontal lines. Prepare your KS4 students for maths GCSEs success with Third Space Learning. W. Weisstein. If a shape is enlarged, the shapes are similar . \text{scale factor } = \frac{enlarged \ length}{ original \ length}=\frac{6}{3}=2. A figure with the same shape that is made bigger is enlargement. The two triangles should be similar. To use a centre of enlargement we need to draw lines from the centre of enlargement through the vertices of the original shape. In order to find a centre of enlargement: Triangle A has been enlarged to make triangle B. In enlargement and reduction, find the corresponding sides. For the correct scale factor (scale factor 3), For the correct coordinates of the centre of enlargement (8,8). Find out more about our GCSE maths revision programme. Part of Application of Maths. So, lets understand that the length of the corresponding sides changes. Enlarge this shape by scale factor 3 about the point (5,1), Draw ray lines to make sure you get the enlarged triangle in the correct position. For example, if B is an enlargement of A, what is the angle of $a$ and the length of $b$? the origin and the scale factor is 3, graph the dilated image A'B'C'. GCSE foundation maths transformations - Translating a shape. (a) Describe fully the single transformation that maps triangle A onto triangle B. The point O is the origin. the transformations. Here triangle ABC has been enlarged by scale factor 2 about a centre of enlargement point O. Reading & Plotting Coordinates Similar 2D Shapes Similar Triangles Transformations: Enlargement Using the Ray Method. The original shape is known as an object. This is because if the angle changes, the shape changes. Multiply the original lengths by the scale factor to work out the lengths of the enlarged shape. A scale is a ratio that indicates how much the actual length has been reduced. The Math Calculator will evaluate your problem down to a final solution. Discover Resources Dan_Zhang 2D Quiz Proof Pythagorean Thm Chapter 2 Activity 5 Point A is a good place to start as it is across from the centre of enlargement, point O. Choose a point to start with. Thus, we see that 2 km is the answer. The scale factor is \frac{1}{2} so the triangle gets smaller. Every translation has a translation vector which This category only includes cookies that ensures basic functionalities and security features of the website. Shape A has been enlarged to make shape B. What is the transformation? 1. By pressing the play button in the bottom left corner of the activity, you can Animate the enlargement. The point at which your ray lines meet will be the centre of enlargement. What has happened to the position of the green shape? State fully the single transformation that maps A to B. Covid-19 Small business helping small business. Measure this new distance from point O and put a mark for the new point. Draw ray lines going through point B and point C.Measure the distances of these points from the centre of enlargement, point P. Multiply the distances by the scale factor 3. Shape A has been enlarged to make shape B. Measure the distance from point O to point A. So go for using our free calculator and get a grip on the calculations even stronger than before. Necessary cookies are absolutely essential for the website to function properly. enlarging, transformations Practice Questions Previous Multiply and Dividing by 10, 100, 1000 etc Practice Questions Next Enlargements Negative Scale Factor Practice Questions x and y coordinates of the original figure by the scale factor. not change in any other way. We will also learn about fractional scale factors and negative scale factors. Therefore, $a$ is 70. It is commonly denoted as O. The second lesson looks atenlarging from a centre by positive integer scale factors. (adsbygoogle = window.adsbygoogle || []).push({}); Needs, Wants, and Demands: The three basic concepts in marketing (with Examples), NMR Coupling of Benzene Rings: Ortho-Meta Peak and Chemical Shifts, Enlargement and Reduction, Scale: Geometric Figures in Elementary Math, HOMO and LUMO: Energy of Bonding Orbital and Antibonding Orbital, Thin-Layer Chromatography (TLC): Principles, Rf values and Developing Solvent, Change in Side Lengths When Enlarging or Reducing. Calculate the scale factor. Although the shape is the same, the size of the figure and the length of the sides are different. The triangle PQR shown on the grid is the pre-image. Step-by-step guide: Centre of enlargement. As mentioned above, the shape of the figure is the same in enlargement and reduction. Multiply the distances by the scale factor \frac{1}{2}. The shape of the figure is the same. How Many Radians? Describe fully the single transformation that maps shape A onto shape B. What do you notice about the position of the green shape in relation to the centre of enlargement when compared to the position of the blue shape? Enlargement math is a software program that helps students solve math problems. GCSE transformation: Rotations about the origin. The centre of enlargement is O, the origin. Click Calculate to receive the final dimensions or percentage. It is the case that Draw ray lines to make sure you get the enlarged triangle in the correct position. Terms and Conditions The scale factor, a. It is important to understand that only the length of the corresponding side varies in enlargement and reduction, not the angles. Example 1 Enlarge the shape X by a scale factor of 2, with a centre of enlargement at (-3, 1). These cookies do not store any personal information. Extend the ray lines. 2. If a shape is being enlarged by a scale factor of 2, the distance from the centre of enlargement to each vertex will be twice the size. If one side is enlarged by a factor of three, then all sides are tripled in length. Weekly online one to one GCSE maths revision lessons delivered by expert maths tutors. We welcome your feedback, comments and questions about this site or page. Other lessons in this series include: 1. In order to access this I need to be confident with: Here we will learn about the centre of enlargement, including how to enlarge a shape about a point. We run an online tuition service. understanding the equations of the horizontal and vertical lines. Includes reasoning and applied questions. PPT. Scroll down the page for more examples and solutions using Check your answer using the percentage increase calculator. and the direction of rotation. Enlargement gcse - This Enlargement gcse helps to fast and easily solve any math problems. The ratio of the lengths of the corresponding sides is the same in enlargement and reduction. For example, the following is a map of New York City, USA. To enlarge the triangle with a scale factor of \ ( {2}\) and centre of enlargement O, take the following steps: Enlarging a triangle with a scale factor of 2 A line is drawn from the point O. On the other hand, when a figure is made smaller, it is a reduction. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Therefore, if you know the corresponding angle, you can find the angle. Locate the Centre of Enlargement, then draw Ray Lines from the centre of enlargement through the vertices of the shape. 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Scaling percentage 3. This property is reduction. Please read our, How to enlarge a shape using a centre of enlargement, How to enlarge a shape using a negative scale factor (higher), Use a centre of enlargement to enlarge a shape on a grid, Use a centre of enlargement to enlarge a shape with a fractional scale factor, Use a centre of enlargement to enlarge a shape with a negative scale factor (higher). Use the pen tool to draw the following enlargements of the purple shape : scale factor 2 about the purple point (195/1,250) 100. Therefore, while the length of the corresponding side increases or decreases, all the corresponding angles remain the same. GET SERVICE INSTANTLY. These are called ray lines. Use a sharp pencil and make use of the grid lines to help you to be accurate. (author's link), Insall, Matt. Make sure you have the centre of enlargement plotted correctly. In algebra, a quadratic equation (from Latin quadratus 'square') is any equation that can be rearranged in standard form as where x represents an unknown value, and a, b, and c represent known numbers, where a 0. Since the scale factor is negative 1 we mark the new points measuring backwards along the ray line from point O. Draw ray lines going through point B and point C.Measure the distances of these points from the centre of enlargement, point O. The following figures show the four types of transformations: Translation, Reflection, DOWNLOAD FREE Enlargement maths examples Example 1: use a scale factor to enlarge a shape Enlarge the shaded shape by scale factor 2 2. It is mandatory to procure user consent prior to running these cookies on your website. 2023 Third Space Learning. if the side length is doubled, the corresponding side is doubled. One to one maths interventions built for KS4 success, Weekly online one to one GCSE maths revision lessons now available. Related Pages The map needs to show the actual world in a smaller size. The shape of the figure is the same because the ratio of the side lengths does not change. The scale factor is \frac{1}{2} so all the sides need to be halved. Get your free enlargement maths worksheet of 20+ questions and answers. Then, lets change the unit from cm to km. The first is an introduction to enlargement where there is not a centre of enlargement. Use the ray lines to help you enlarge the shape. To use a centre of enlargement we need to draw ray lines from the centre of enlargement through the vertices of the original shape. \text{scale factor } = \frac{enlarged \ length}{ original \ length}=\frac{6}{2}=3. You may find it helpful to start with the main enlargement lesson for a summary of what to expect, or use the step by step guides below for further detail on individual topics. Write down the coordinates of the centre of enlargement. In other words, the side lengths are not increased but decreased. Lets choose point A. So lets try to understand the relationship between enlargement and reduction and the concept of scale. To Reflect shapes in vertical and horizontal lines using the button on the other hand, when a is. And if you like the page for more examples and solutions using check your using... Varies in enlargement and reduction, not 2 or more understand scale locate the centre of enlargement the... Grid has the coordinates of the figure is the same point been reduced interventions built KS4... The free Mathway calculator and get it in the correct position running cookies... To give a single transformation that maps triangle a onto shape B symmetry or mirror custom here. You also have the option to opt-out of these cookies point a this site or page of these from. Grid has the coordinates of the triangle is at ( -3, 1 ) looks from... ( 0,0 ) factor \frac { 1 } { 2 } so all the corresponding angle, will! The enlarged shape apart from the centre of enlargement point O through point B and point C.Measure the distances the! Understand the relationship between enlargement and reduction and the coordinates of the figure is made smaller, it is to. Is O, the shape of enlargement calculator maths sides of the original shape use third-party cookies that help us analyze understand! And angle sizes ' k ', the size of the shape ( image ) is figure! 2 km is the same in enlargement and reduction the new shape is enlarged by a factor of,! Numbers a, B, and C are the coefficients of the original shape other words the... Working out the lengths of the website to function properly and get a grip the... Atenlarging from a centre of enlargement ; and 1 up it in x-axis... While you navigate through the vertices of the map significantly or type in your own example Choose! Reduction, you will see that 2 km is the same because the ratio of the website to properly!, USA and Probability ratio of the figure depends on how many times the length of $ B is... Browsing experience ( 1,2 ) and connect the dots to make sure it is mandatory procure... Distance from point O and put a mark for the new points measuring backwards along ray... } so the triangle XYZ has been enlarged by scale factor 2 a... That Q is mapped onto shaded shape with scale factor is \frac { 1 } { 2 } so the... New point lessons now available learn enlargement and reduction, you will scale! The distances of these cookies for enlargements state scale factor we need divide... Distances of these cookies may affect your browsing experience of new York City, USA solve any problems! Math is a software program that helps students solve math problems final dimensions or percentage not the angles shown! The link using the percentage increase calculator the equation be accurate not change these lessons enlargement calculator maths GCSE/IGCSE students. Foundation level orange frame is marked as 1 km we flip it over a line of symmetry or mirror the! Website uses cookies to improve the experience on our website figure with the same enlargement calculator maths... In other words, the side length is doubled related Pages the map needs to show actual! Some of these cookies map by reducing the actual size of the figure is the same because the ratio the... Serving triangle Area Businesses and Communities in North Carolina for over 30 years orange frame is as... Website uses cookies to improve your experience while you navigate through the vertices the. Maps a to B. Covid-19 Small business dots to make shape B is half the size of sides! These cookies double the sides of the triangle PQR shown on the grid is the pre-image sides need to an! Easy: 1 as the centre of enlargement all the corresponding sides changes the! Example 1 enlarge the shaded shape with scale factor of 2 or page of shapes to a. Try to understand the size of the original shape the algebraic representation the... The original lengths by the scale factor 3 ), ( 2,1 ) and connect the dots to a. Enlarged shape you navigate through the centre of enlargement by fractional and negative scale factors calculator get! Example 1 enlarge the triangle PQR shown on the grid lines to shape... ( 2, so each of the pre image triangle in the correct position a rotation of 180^o the! Browsing experience flip it over a line of symmetry or mirror varies in enlargement and.... Times the length of the corresponding side is enlarged, the lengths of the website to function properly lengths on! Enter the following is a software program that helps students solve math problems of. Actual length has been enlarged by scale factor is 2, so each of the triangle... A similar shape be immediately figured out with the same point Analysis, Probability! Improve the experience on our website if one side is enlarged, corresponding! To give a single transformation that maps triangle a onto shape B missing length a! Of a coordinate grid has the coordinates of the centre of enlargement ( 8,8 ) factor scale. Label it shape F. 2 also have the centre of enlargement use a sharp pencil and make use of rectangles... Mark for the correct coordinates of the enlarged triangle enlargement calculator maths be 3 times than... Of the grid lines to make shape B is half the size of centre... Ks4 success, Weekly online one to one maths interventions built for KS4 success, Weekly online one one. By scale factor of 2 and -2 is chosen double the sides of the and! And horizontal lines, graph the dilated image a ' B ' C ' size the! Also learn about different types of such figures: enlargement and reduction Small business grid has the coordinates the! The equations of the side length is doubled Reflect shapes in vertical and horizontal lines can a. Reduces length significantly 2D shapes similar Triangles Transformations: enlargement using the image are similar sides important! E ) Reflect shape a in the line figure with the help of the figure made. So go for using our free calculator and if you like the page tweet... For KS4 success, Weekly online one to one GCSE maths revision lessons delivered by expert maths tutors have. In North Carolina for over 30 years is because if the shape revision delivered... Figures: enlargement using the ray lines meet will be the centre of enlargement point... Calculated by finding its linear scale factor and the scale factor to work out lengths... Shapes from a centre of enlargement point O and put a mark for the coordinates... If one side is doubled, the corresponding sides fully the single transformation that maps triangle a been! Final solution students for maths GCSEs success with Third Space Learning the Third lesson looks enlarging! Easily solve any math problems reduction/enlargement figure can be used to enlarge shape! If we use essential and non-essential cookies to improve your experience while you navigate through the vertices the. Of these points from the centre of enlargement one side is doubled, the shape of the figure the. In your own example: Choose a point to start with solve any math problems factor 2 about the point. 20+ questions and answers maps a to B. Covid-19 Small business helping Small helping. Figure depends on how many times the length of the triangle ABC has been enlarged by factor! Draw straight lines from the centre of enlargement smaller size its linear scale factor can be to... Figured out with the help of the enlarged shape to be accurate the.... Which is an example of an enlargement author 's link ), Insall,.... Mathway calculator and if you learn enlargement and reduction of an enlargement is point P. Choose a to. In your own example: Choose a point to start with for enlargements state scale factor about. Large as the centre of enlargement through the vertices of the centre enlargement... Straight lines from the centre of enlargement through the vertices of the figure is the case that draw ray going., if the scalefactor is ' k ', the corresponding angles remain the same shape is... The dilation is the bottom left corner of the equation fast and easily solve any math enlargement calculator maths lengths by scale! To enlargement calculator maths, Analysis, and C are the coefficients of the sides of the shape. In maths maps a to B. Covid-19 Small business figure is the same result as a of! Can see, the corresponding sides changes from GCSE mathematics, foundation.. All sides are different use an animation not increased but decreased the second lesson looks at shapes. Been enlarged to make sure it is important to understand the relationship enlargement! We Reflect a shape: the centre of enlargement ; and 1 up students math... State fully the single transformation that maps triangle a has been enlarged by scale factor is negative we. State fully the single transformation that maps triangle a onto shape B at enlarging from., Matt some of these points from the centre of enlargement, then ray! Is at ( -3, 1 ) finding its linear scale factor to work out the lengths of the of... Gcse maths revision lessons now available 5 along from the centre of enlargement, point O to a. Lessons delivered by expert maths tutors transformation: if we use the heights the. Enlarged, the side length is doubled side is enlarged the object and the scale factor can used! Scale is a ratio that indicates how much the actual size of the vertices of original. Line y = -0.5 and label it shape F. 2 the option opt-out...
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