SOLUTION: The radius of a right circular cylinder is increased by 40% and the height is decreased by 50%. What is the change in the volume?

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Question 319758: The radius of a right circular cylinder is increased by 40% and the height is decreased by 50%. What is the change in the volume?

Answer by Alan3354(69443) About Me  (Show Source):
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The radius of a right circular cylinder is increased by 40% and the height is decreased by 50%. What is the change in the volume?
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R = 1.4r
H = 0.5h
V+=+pi%2Ar%5E2%2Ah%2F3
Change in volume = 1.4^2 x 0.5 = 0.98
2% decrease