Question

please answer question number 7

Answer 1

Answer: 16:25

Step-by-step explanation:

Radius of circle A /Radius of Circle B

R/r= 4:5= 4/5

Ratio of area = area of circle A/ Area of Circle B

Ratio= πR^2/ πr^2

Ratio=( R/r)^2

Ratio=( 4/5)^2

Ratio= 16/25