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 90
o equal oblique lines draiun to the line on the same side of a per-pendicular from the point to the line. 14:!• Cor. 2.—Tv)0 equal oblique lines drawn from the samepoint in a perpendicular to a given line, cut off equal distanceson that line from the foot of the perpendicular, Dem.—For, if the… … Fig. 120. 2. The several angles in the figure are such parts of a rignt angleas are indicated by the fractions placed in them. If these anglesare added together by bringing the vertices together and causingthe adjacent sides of the angles to coincide, how will MA and CNlie ? Construct seven…
Geometry · Trigonometry
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