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The height of the cone is 30cm. A small cone is cut off at the top by a plane parallel to the base. If its volume of the given cone,

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The height of the cone is 30cm. A small cone is cut off at the top by a plane parallel to the base. If its volume of the given cone, at what height above the base is the section made?

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Solution is...........

Since it is given that volume of the smaller cone =1/27 (Volume of larger cone)

Hence, the smaller cone has been cut off at a height of (30 - 10)cm = 20cm from the base.

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