The radius of the base of a right circular cylinder is halved and the height is doubled what is the ratio of the volume of the new cylinder to that of the original cylinder
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Refer to the above pic:)
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radius =1/2
height=2h
volume of new cylinder=pie×1/2×1/2×2h
=pie1/2h
old volume!=pie×1×h
pieh
ratio=pie1/2h÷pieh
=1:2ans
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