Question

Find the scale factor for the dilation shown.

The scale factor is
164
120
84
la
4-
91
4
8
12
16

Answer 1

The scale factor is 2

The height of blue rectangle is 5 units
The width of blue rectangle is 6 units

The hight of black rectangle is 2.5 units
The width of black rectangle is 3 units

(height of blue rectangle) / (height of black rectangle)
= 5/2.5
=2

(width of blue rectangle) / (width of black rectangle)
=6/3
=2

Therefore, we can know that the width and height of blue rectangle is double the widths and height of black rectangle.

That’s why the scale factor is 2