Complementary Angles Small 302×320 Medium 603×640 Large 966×1024 Download Tiff Original 2263×2400 | (342.5 KB) Description Illustration of complementary angles. Two angles whose sum is a right angle. Keywords 90 degrees, angle, angles, complement, complementary, complements, geometry, sum Galleries Complementary Angles Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 13
