math
posted by chandice .
find the surface area of a Cylindrical grain silo with hemispherical top
height=71
diamatere=62

So the radius of the top is 31 and the surface area of the hemisphere
= (1/2)4pi(31)^2
= 1922pi
Surface area of cylinder
= 2pi(31)(71) = 4402pi
so the total surface area = 6324pi