The volume of a right circualr cylinder...

The volume of a right circualr cylinder varies as the square of the radius of its base , when its height is constant and as the height when the radius of the base is constant . The volume of a cylinder the radius of whose base and height are respectively 2 metres and 7 metres is 88 cubic metres . The volume and radius of the base of a cylinder are 396 cubic metres and 9 metres respectively . Detemine the height of the cylinder.

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The correct Answer is:

1.55 metres

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