Complementary Angles Small 293×320 Medium 585×640 Large 936×1024 Download Tiff Original 2194×2400 | (183.4 KB) Description Illustration showing that angles 1 and 2 are complementary. Keywords angle sum, complementary angles, geometry, sum of angles Galleries Complementary Angles Source: C. A. Hart & Daniel D. Feldman Plane And Solid Geometry (New York: American Book Company, 1911) 16
