Question

A cone is cut by a plane parallel to the base and upper part is removed.if the C.S.A. of the remainder is 15/16 of the C.S.A. of whole cone, find the ratio of the line segments to which the cone's height is divided by the plane.

Answer 1

Let the Height of larger cone = H

Let height of smaller cone = h and radius of larger & smaller cones are R and r