Equilateral Triangle Small 290×320 Medium 580×640 Large 928×1024 Download Tiff Original 2400×2648 | (364.0 KB) Description Illustration showing an equilateral triangle (one that has three sides equal). Keywords 3 equal sides, angles, equilateral, geometry, polygon, shape, side, triangle, triangles Galleries Miscellaneous Triangles Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 30
