Question

The radius of the base of a right circular cone is r. It is cut by a plane parallel to the base at height h from the base. The distance of the boundary of the upper surface from the centre of the base of the frustum is root of h`2 + r`2/9. Show that the volume of the frustum is 13/27pi r`2h

Answer 1

Answer:

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Step-by-step explanation: