A solid cone of height 12cm and radius 9 cm is recast into a solid sphere. Calculate the surface area of the sphere.

Answer 1

cone: v = 1/3 pi r^2 h
using that v, then for the sphere, find its radius and then area:
v = 4/3 pi r^3
a = 4 pi r^2

Answer 2

Why is it not showing answer