Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 152
rallelopipedonbe conceived, having for its lower base the parallelogramABCD, and NOPQ for its upper, the third parallelopipedonwill be equivalent to the parallelopipedon AG, since with thesame lower base, their upper bases lie in the same planeand between the same parallels, GQ, FN (Prop. VIIL).For… … PROPOSITION X. THEOREM. Any parallelopipedon may he changed into an equivalent rectan-gular parallelopipedon having the same altitude and anequivalent hase. BOOK VII. 153
Trigonometry · Geometry
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