Question

The area of the plane of a sphere is 144pie cm 2 . Find its volume.

Answer 1

let radius of the sphere = r cm
surface area = 144π cm²---(1)
surface area= 4πr²----(2)
(2)=(1)

4πr²=144π cm²
r²= (144π)/4π
r²=36 cm²
r =6 cm
volume of the spere = 4/3*π*r³

= 4/3*π*6³
= 288π cm³