The radii of two right circular cylinder are in the ratio 2:3 and their height are in the ratio 5:4. Calculate the ratio of their volumes.
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Solution
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Volume of cylinder=πr2h
∴V1V2=πr21h1πr22h2
=(r1r2)2×(h1h2)
=49×54
=59=5:9
So, ratio of volume is 5:9
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