The height of a cone is 30 cm. A small cone is cut off at the top by a plane parallel to the base. If it's volume be 1/27 of the volume of the given cone, at what height above the base is the section made.

Asked by Somesh Meena | 7th Feb, 2014, 06:39: PM

Expert Answer:

rightwards double arrow h subscript 1 cubed equals 1 over 27 h subscript 2 cubed
rightwards double arrow h subscript 1 equals 1 third h subscript 2 equals 1 third cross times 30 equals 10 c m

Answered by  | 7th Feb, 2014, 09:46: PM

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