Question

Two circles have a scale factor of 3:2 what is the ratio of the areas of these circles?

3:2
9:4
13:12
12:26

Answer 1

ratio is 9;4

Explanation:

let ratio be 3x ans 2x

by question

2πR/2πr=3x/2x

R/r=3/2

area

πR²/πr²=(3/2)²=9/4