Question

The volumes of two spheres are in the ratio 64:27. Find the ratio of their surface areas.

Answer 1

Answer:

Step-by-step explanation:

let radius of two spheres be r and r'

A.T.Q, (4/3πr³)/(4/3πr'³)=64/27

r/r'=∛64/27

r/r'=4/3                            eq. 1

4πr²/4πr'²

r²/r'²

(r/r')²

from 1. (4/3)²

16/9       ans.4