Equal Chords in Equal Circles Theorem Small 320×158 Medium 640×317 Large 1024×507 Download Tiff Original 2400×1188 | (141.4 KB) Description Illustration used to show that "In equal circles, or in the same circle, if two chords are equal, they subtend equal arcs; conversely, if two arcs are equal, the chords that subtend them are equal." Keywords arc, chord, chords, circle, equal arcs, geometry, proof, proofs, prove, theorem, theorems Galleries Geometric Theorems and Proofs Source: C.A. Hart, Daniel D. Feldman Plane and Solid Geometry (New York, NY: American Book Company, 1911) Courtesy the private collection of Roy Winkelman