Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 152
r pyramids, or the polygonal pyramidS—ABCDE, will be measured by the sum of the trianglesABE, BCE, CDE, or the polygon ABCDE, multiplied byone third of SO. Cor. 1. Every pyramid is the third part of the prism whichis the same base and the same altitude. Cor. 2. Two pyramids having the same… … 52 GEOMETRY Sjlidity of the Cone
Geometry · Plane trigonometry
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