SOLUTION: One side of the rectangle with base 7 inches and height 12.8 inches lies on a dashed line. If the rectangle is rotated about the dashed line, what is the volume of the solid that

Question 37143: One side of the rectangle with base 7 inches and height 12.8 inches lies on a dashed line. If the rectangle is rotated about the dashed line, what is the volume of the solid that is formed? Many thanks for your help! Please show how to solve since I have other similar problems.
Answer by wuwei96815(245) (Show Source): You can put this solution on YOUR website!
I am guesing that the solid formed is a cylinder. The volume of a cylinder can be found from the formula V = area of the end (a circle) times the height of the cylinder.

V = area x height
V = (pi x r^2)(12.8)
V = (3.14 x 49)(12.8)
V = 1,969.4 cubic inches

I hope that is right?
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