Quadrilateral Circumscribed About a Circle Small 320×287 Medium 640×575 Large 1024×920 Download Tiff Original 2400×2156 | (241.6 KB) Description Illustration of a quadrilateral circumscribed about a circle. This could also be described as a circle inscribed in a quadrilateral. Keywords circle, circles, circumscribe, circumscribed, geometry, inscribe, inscribed, polygon, quadrilateral, quadrilaterals Galleries Inscribed Shapes Source: C.A. Hart, Daniel D. Feldman Plane and Solid Geometry (New York, NY: American Book Company, 1911)