Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 389
es of two similar polyhedrons are 343 cubicinches and 512 cubic inches, respectively: (a) an edge of the first figure is14 inches, find the homologous edge of the second ; (h) the total area ofthe first figure is 280 square inches, find the total area of the second. 878 SOLID GEOMETRY Proposition… … C D Given frustum AM, of pyramid 0-AF, with its volume de-noted by V, its lower base by B, its upper base by b, and itsaltitude by H. To prove V= ^H{B + b+ V^ • b). Argument 1. Frustum AM = pyramid O-AF minus pyramid 0-RM. 2. Let E^ denote the altitude of 0-RM.Then F= ^ b(h+ h)— ^b - h = ^HB +…
Geometry, Plane · Geometry, Solid
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