The height of cone is 30 cm & radius 6 cm. a small cone is cut off at the top of a plane || to base . the radius of cone is 3 cm. if the volume is 1/9 of the volume of the given cone, at what height above the base the section is made.

Consider a cone of cone of radius R and H Let a cone of height h is cut off from the top of ... A small coneis cut off at the top by a plane parallel to the base.If its volume be 1/27 of the volume of the given cone,then what is the height above the base ... Thus, the section of the cone is mode at a height of 20 cm above the base.

The answer would be the second choice : )