SOLUTION: A plane is passed parallel to the base of a right circular cone. The distance from the vertex to this plane is two-fifths the altitude of the cone. What is the ratio of the volume

Algebra ->  Bodies-in-space -> SOLUTION: A plane is passed parallel to the base of a right circular cone. The distance from the vertex to this plane is two-fifths the altitude of the cone. What is the ratio of the volume       Log On

Let the volume of the large cone be V.


Then the volume of the small cone is   = .


The volume of the frustum of the cone is the difference .


Finally, the ratio under the question is  .    ANSWER