Question

Find the missing measure for a right circular cone given the following information.

Find r if T.A. = 12pi and L.A. = 8pi.
a. 2
b. 4
c. 16

Answer 1

Area of base = TA - LA = 4 pi


pi r^2 = 4 pi where r is radius of base.


r^2 = 4


So r = 2 Answer