411 REFERENCE · Wikibooks
Geometry Course/Polygon/Quadrilateral/Square
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Square
A square is a polygon of four right angles and four parallel and congruent sides.
Square
AB = BC = CD = DA
Properties
Perimeter
P = Side + Side + Side + Side = 4 x Side
Area
A = Side x Side = Side2