Elements of geometry and trigonometry. Revised and adapted to the course of mathematical instruction in the United States (1856)
Legendre, A. M. (Adrien Marie), 1752-1833, Davies, Charles, 1798-1876 · New York : A.S. Barnes · leaf 217
212 GEOMETRY. … will tlien be inscribed in tliefrustum of the cone, the frus-tum of a regular pyramid. Thesolidity of the frustum of thispyramid ^vill be equivalent tothree p^-ramids having the com-mon altitude of the frustum, andfor bases, the lower base of thefrustum, the upper base of thefrustum, and a mean…
Geometry · Trigonometry
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