# Volume of Frustum of a Pyramid

## Description

Diagram used to prove the theorem: "The volume of the frustum of a pyramid (cone) is equal to the sum of three pyramids (cones) whose common altitude is the altitude of the frustum and whose bases are respectively the upper base, the lower base, and a mean proportional between them."

## Galleries

## Source:

Arthur Latham Baker *The Elements of Solid Geometr with Numerous Exercises* (Boston, MA: Ginn & Company, 1893)

Courtesy the private collection of Roy Winkelman