
QuadrilateralAlso tetragon, quadrangle
From Latin: quadri "four" + latus "side"
Four coplanar line segments linked end to end to create a closed figure.
A 4sided polygon.
Try this Drag the orange dots on each vertex
to reshape the quadrilateral.
The quadrilateral is any 4sided polygon.
But it is the parent of a whole family of figures, each with their own distinct names and characteristics.
See also Tetragon.
Quadrangle
Quadrangle ("four angles") is another name for a quadrilateral.
However, it is a word often used for an open space where people gather, say on a school or university campus.
In this case the quadrangle (or "quad") is usually a rectangle or square.
Types of quadrilateral
Related polygon topics
General
Types of polygon
Area of various polygon types
Perimeter of various polygon types
Angles associated with polygons
Named polygons
(C) 2009 Copyright Math Open Reference. All rights reserved

