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 270
tionusually given in our text-books. Drawing thesquares on the three sides, let fall Bl y>erpen-dicular to AC and produce it to K. Draw BD,BE, HC and AF. Show that the triangle HAC= BAD, and that the former is half the squareAG, and the latter half the rectangle AK.Hence AG = AK. In like manner… … r.^ ^
Geometry · Trigonometry
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