Hi guys,

ive been given the question; a container made from thin metal is in the shape of a right circular cylinder with a height h cm and a base radius r cm. the container has no lid. When full of water, the container holds 500cm3 of water.

show that the exterior surface area, A cm2, of the container his given by;

A=(pi)r^2 + 1000/r

Can anybody guide me on how to tackle this problem please? Should I transpose the formula and substitute A for 500cm3 to begin with?

thanks,

Kris