Question

A cone with a radius of 3" has a total area of 24π sq in.Find the volume of the cone.
A.) 24πin.^3
B.) 15πin.^3
C.) 12πin.^3

Answer 1

http://math.about.com/od/formulas/ss/surfaceareavol_2.htm

Answer 2

on this I have been trying to find the slant height to try and get the volume, and I have no idea how to get it.

Answer 3

I've plugged in the total area in the equation TA=πrl + πr^2 in order to get the 'l' and I always end up with 2π, which is never useful in the other equation.