Question

If the surface area of a sphere is numerically equal to its volume,then the surface area of that sphere(in sqaure units) is

Answer 1

Answer:

volume of sphere =4/3πr³

surface area of sphere =4πr²

given that - volume of sphere = surface area of sphere

4/3πr³=4πr²

r/3=1

r=3

if radius =3 then diameter will become double i.e. 2x3=6

Surface area =4.π.(3)²  = 36.π sq.units. Answer.