A treatise on special or elementary geometry (1877)
Olney, Edward, 1827-1887, Olney, Edward, 1827-1887. Elements of trigonometry, plane and spherical · New York : Sheldon · leaf 408
d the included side, find the third angle by taking thesupplement of the two given. Let fall a perpendicular from one extremity ofthe given side upon the opposite side. The two right angled triangles thusformed can then be computed. Thus, if A, h, and C are given, having found B,let fall CD. The… … 56 PLANE TRIGONOMETRY. 2nd. W/ien tico of the given parts are adjacent and one separated; i. e , whentwo angles and a side opposite one are given ; or two sides and an angle oppo-site one are given. The first of these cases is viitually the same as the last given.To solve the other, let fall a…
Geometry · Trigonometry
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