Let A be the lateral surface area of the cone below, and let B be the lateral surface area of the cylinder below. Find AB.
Lateral surface area of the cone = pi * r * L r = 7 L = 18
So A = pi * 7 * 18 = 126 pi =
Lateral surface area of the cylinder = 2pi r *h = 2 pi * 8 * 15 = 240 pi = B
A / B = [126 pi ] ) / [ 240 pi] = .525
+1556 
