Question

Pre-image ABCD was dilated to produce image A'B'C'D' .

What is the scale factor from the pre-image to the image?

Enter your answer in the box as a fraction in simplest form.

Answer 1

The Answer is 2/5

Explanation:

In order to find the scale factor from the pre-image you take the sides you know, in this case they are A,D and 'A,'D, which are 8 and 20, and then put them into a fraction form, 8/20, and then simplefie it by dividing it by the biggest number that can fit into both numbers which is 4. then divided both numbers by 4.

8 ÷ 4 = 2

20 ÷ 4 = 5

The Answer = 2/5