Question

1. rectangle a is dilated to form rectangle b

what scale factor was used? enter the answer and also provide a 1 sentence explanation that describes how you determined your answer.

Explanation:

Step1: Find scale factor using widths

$\frac{20}{4} = 5$

Step2: Verify with heights

$\frac{30}{6} = 5$

Answer:

5
The scale factor is 5, calculated by dividing the corresponding side lengths of rectangle B by rectangle A (20/4 or 30/6).