Rectangle Small 320×197 Medium 640×395 Large 1024×632 Download Tiff Original 2400×1481 | (186.3 KB) Description A quadrilateral plane figure having four right angles and its opposite sides equal in length. The adjacent sides are unequal. Keywords shape, square Galleries Quadrilaterals Source: William Dwight Whitney The Century Dictionary and Cyclopedia: An encyclopedic Lexicon of the English Language (New York, NY: The Century Co., 1889)
