Obtuse Triangle ABC Small 320×127 Medium 640×254 Large 1024×407 Download Tiff Original 2400×954 | (94.0 KB) Description Obtuse triangle ABC with sides a,b,c labeled and angles A,B,C labeled. Keywords obtuse triangle ABC, triangles, trig, trigonometry Galleries Trigonometry: Triangles Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 462
