Parallelogram Small 320×175 Medium 640×350 Large 1024×561 Download Tiff Original 2400×1314 | (138.4 KB) Description Illustration of a parallelogram, a quadrilateral which has opposite sides parallel. Keywords 4 sides, four, opposite sides parallel, parallelogram, polygon, quadrilateral Galleries Quadrilaterals Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 47
