If volumes of two spheres are in the ratio 64:27, then the ratio of their surface areas is

Question

Philoid · Accepted Answer

Let the radius of spheres be r₁ and r₂ and we know that

Given,

Ratio of volumes is 64 : 27

…(1)

Now,

Surface area of sphere = 4πr²

where r = radius

So, ratio of surfaces areas is 16 : 9