I need help finding the radius of a sphere?
I need help on this question- I can't remember how to do this problem:
If the volume if a sphere is 288π, what is the radius and surface area of the sphere?
- Anonymous1 decade agoFavorite Answer
Well, since to find the volume you use 4/3πr^3, then you wanna work backwards and isolate r.
288π times 3/4 = 216π
216 third root= 6
So the radius is 6
And you can use the radius to find the surface area. 4πr^2
144π units squared OR 452.4 units squared.
- Anonymous1 decade ago
Solve for R in first, solve for A in second.