A rectangle has sides of 6 and 8. I the rectangle is spun about one of the longer sides, forming a cylinder, what is the volume in terms of pi, of

A rectangle has sides of 6 and 8. I the rectangle is spun about one of the longer sides, forming a cylinder, what is the volume in terms of pi, of the cylinder? If the rectangle is spun about the shorter side, how much more is the volume of this cylinder?