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 61
SECTION VL ABOUT SIMILAR FIGURES, ESPECIALLY TRIANGLES. 87, Similar Figures are such as are shaped alike—i. e., havethe same form. A more scientific definition is. Similar Figures are such as havetheir angles respectively equal, and their homologous (correspond-ing) sides proportional. * Be careful… … Fig. 70. 88. Honioloffous^ or Corresponding Sides of similar figures,are those which are included between equal angles in the respectivefigures. In Similar Triaxgles, the Homologous Sides are those OPPOSITE THE equal AJh^GLES. III.—The triangles ABC and DEF are similar, for they are of the same…
Geometry · Trigonometry
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