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 156
obtuse angle. In this case let m and o be the given sides, and 0 the angle oppo-site o. Draw an indefinite line OX, construct 0 equal to 0, and take ONequal to m. . From N as a centre, with a radius equal to 0, describe an arc cut-ting OX, as at M. Draw NM. Then is NMO the triangle required,…
Geometry · Trigonometry
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