The right triangle on the right is a scaled copy of the right triangle on the left. Identify the scale factor. Express your answer in simplest form.

Answer:
5/7
Step-by-step explanation:
You are multiplying 56 by some number to get to 40
56x = 40
x = 40/56
x = 20/28
x = 10/14
x = 5/7
The scale factor is 5/7
-Chetan K