SOLUTION: the radius of a cylinder is doubled and its height is halved. how does the volume change?

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Question 472099: the radius of a cylinder is doubled and its height is halved. how does the volume change?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
r2h:(2r)2x1/2h
r2h:4r2x1/2h
r2h:2r2h
The volume is doubled..