Rectangle Formed When Two Parallel Lines are Cut by a Transversal Small 320×311 Medium 640×622 Large 1024×995 Download Tiff Original 2470×2400 | (261.2 KB) Description Illustrations to show that if two parallel lines are cut by a transversal, the bisectors of the interior angles form a rectangle. Keywords bisector, bisectors, line, parallel lines, quadrilateral, quadrilaterals, rectangle, rectangles Galleries Quadrilaterals Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 73