Added by Garrett Stettler (TQ Team 20991) on March 12, 1999 at 16:01:49:
Volume = (1/3)PI(r^2 + rR + R^2)h
Lateral Surface Area = (PI)s(r + R)
Total Surface Area = PI[r(r+s)+R(R+s)]
r = small radius
R = large radius
h = height
s = slant height = SQRT[(R-r)2+h2]