Pyramid Frustum With Triangular Bases and Height of 27 inches
An illustration of a pyramid with the top cut off by a plane parallel to the base. The remaining part is called a frustum. This frustum has right triangular bases, one with 20 inch side and the other with a 30 inch side. Height is 27 inches.
Keywordsvolume, shape, 8, solid, triangles, frustum, Right Triangle, bases, altitude, 30, 20, part of pyramid, triangular base, sides of 12, height of 27 inches
Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 228