Question

Ratio between areas of 2 circles is 16:9 find the ratio between their radii

Answer 1

Answer:

Hello,

Here is your answer :-

Let radius of one circle be r and another circle be R.

Area of circle with radius r = πr²

Area of circle with radius R = πR²

According to the question :-

πr²/ πR² = 16/9

π get cancelled

We left with, r²/R² = 16/9

(r/R)² = 16/9

r/R = √16/√9

r/R = 4/3

Therefore, ratio of the radius of two circles are = 4:3