Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 33
ngles of the polygon. 87. Def. If any sideof a polygon is prolongedthrough a vertex, the angleformed by the prolonga-tion and the adjacent side is called an exterior angle of thepolygon. In Fig. 1, A 1, 2, 3, 4, and 5 are exterior angles. 88. Def. A line joining any two non-adjacent vertices of… … BOOK I 23 91. Def. A polygon which is both equilateral and equi-angular is a regular polygon. 92. Def. A polygon of three sides is called a triangle; oneof four sides, a quadrilateral; one of live sides, a pentagon; oneof six sides, a hexagon; and so on. TRIANGLES CLASSIFIED WITH RESPECT TO SIDES…
Geometry, Plane · Geometry, Solid
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