Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 147
the upper and lower bases multiplied by theslant heiffht PROPOSITION V. THEOREM. If the three planes which form a solid angle of a prism^ are equalto the three planes which form the solid angle of another prism^each to each^ and are like situated^ the two prisms will be equalto each oUicr, Let the… … For, lay the base ABCDE upon its equal abcdi ; these twobases will coincide. But the throe plane angles which form 148 GEOMETRY. the solid angle B, are respectively equal to the three planeangles, which form the solid angle b, namely, ABCzrra^c,ABGz=iabg, and GBC =gbc ; they are also similarly…
Trigonometry · Geometry
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