The volume of a cone is 16 pi cubic inches. Its height is 12 inches. What is the radius of the cone?
+36916 Volume of a cone formula V = 1/3 pi r^2 h
You are given Volume = 16 pi
you are given h
16 pi = 1/3 pi r^2 ( 12) Divide both sides by pi
16 = 1/3 r^2 (12) 1/3 * 12 = 4
16 = 4 r^2 divide both sides by 4
4 = r^2 You should be able to take it from here ! 
