Question

1. abcd is similar to amnp. what is the length of bc?

Explanation:

Step1: Identify similar rectangles' ratio

ABCD ~ AMNP, vertical sides ratio: CD/NP = 45/30 = 3/2

Step2: Find DA using ratio

Horizontal sides ratio same: DA/PA = 3/2, PA=40, DA=40*(3/2)=60

Step3: BC = DA (rectangle opposite sides)

BC=60

Answer:

60