CBSE Class 10 Maths (Standard) 2017 · Paper 530/1 · Question 31
The height of a cone is cm. A small cone is cut off at the top, at some height above the base, by a plane parallel to the base. If its volume is of the volume of the given cone, at what height above the base has the section been made?
Answer
The section is made at a height of cm above the base.
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