Scale Factor

1

Triangle A1B1C1 has been enlarged to give triangle ABC.

What is the scale factor of enlargement?

Two triangles plotted on a grid. One is 1 x 2 the other is 3 x 6

2

Triangle XYZ has been enlarged to give triangle X1Y1Z1.

What is the scale factor of enlargement?

Two triangles plotted on a grid. One is 3 x 1.5 the other is 6 x 3

3

Triangle ABC has been enlarged to give triangle A1B1C1.

What is the scale factor of enlargement?

Two triangles plotted on a grid. One is 3 x 1 the other is 9 x 3

4

For the pair of similar rectangles below, find the scale factor and calculate x.

A diagram of a 10cm x 8cm rectangle and a 30cm x X cm rectangle

5

For the pair of similar triangles below, find the scale factor and calculate x.

Two similar triangles