Question

the ratio between the areas of two circles is 16:9. find the ratio between their circumference

Answer 1

let radius of two circles be r1 and r2

hence ratios wii be πr1²/πr2²=16/9

from this we get r1/r2=4/3

ratios of circumference=2πr1/2πr2.hence ratios will be r1/r2=4/3 i.e., 4:3