Central Angles and Arcs in a Circle Small 320×304 Medium 640×608 Large 1024×973 Download Tiff Original 2400×2281 | (316.0 KB) Description Illustration of a circle that can be used to show that an "angle at the center of a circle is measured by its intercepted arc." Angle AOB and angle COE are commensurable. Keywords angles, arc, central angle, circle, circles, commensurable, geometry, intercepted arcs Galleries Circles Source: C.A. Hart, Daniel D. Feldman Plane and Solid Geometry (New York, NY: American Book Company, 1911)
