The ratio of the radii of 2 cylinders of equal heights is 1 : 3 . Find the ratio of their volumes .
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1
ratio
=πr1^2h/πr2^2h
=1:9
=πr1^2h/πr2^2h
=1:9
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Volume of a cyclinder of equal heights is dir prop to r^2
So the ratio is 1:9
So the ratio is 1:9
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