© T Madas

© T Madas

Every length has doubled

The Scale Factor is 2

Object

Image

Scale factor is the number of times the lengths of the original shape have been multiplied by

© T Madas

Every length must treble

Enlarge by a Scale Factor of 3

Enlargement is a Transformation

© T Madas

Every length must be multiplied by 4

Enlarge by a Scale Factor of 42 Square Diagonals

8 Square

Dia

gonals

Enlargement produces similar shapes

© T Madas

Every length must be multiplied by 2

Enlarge by a Scale Factor of 2

© T Madas

Enlargement Practice

© T Madas

Enlarge by a Scale Factor of 2

© T Madas

Enlarge by a Scale Factor of 2

© T Madas

Enlarge by a Scale Factor of 2

© T Madas

Enlarge by a Scale Factor of 3

© T Madas

Enlarge by a Scale Factor of 2

© T Madas

Enlarge by a Scale Factor of 3

© T Madas

Enlarge by a Scale Factor of 2

© T Madas

© T Madas

A B

C

DE

FG

HI

Look at the triangle A and 8 more triangles marked as B - I.

1. Write down the letter of the triangles which are enlargements of triangle A.

2. State the scale factor for these enlargements

5

4

5

6

7

6 7

8

15

12

10

810

4

6

12

6

24

x 3

x 2

© T Madas