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A [[polygon]] of four sides where every angle is a right angle (90°)<ref>There are many definitions of ''rectangle'', but it seems sensible to use one which ais based on [[angle]] properites reather than length or papallesim properties. Definition adapted from http://www.mathsisfun.com/definitions/rectangle.html </ref>.
A [[polygon]] of four sides where every angle is a right angle (90°)<ref>There are many definitions of ''rectangle'', but it seems sensible to use one which ais based on [[angle]] properites reather than length or papallesim properties. Definition adapted from http://www.mathsisfun.com/definitions/rectangle.html </ref>.
[[Image:Rectangle.gif]]
As a result of this defintion:
As a result of this defintion:
A specific case of a rectangle is is the [[square]], which is also a [[rhombus]].
A specific case of a rectangle is is the [[square]], which is also a [[rhombus]].
===Notes===
===Notes===
<references/>
<references/>
[[category:geometry]]
[[category:geometry]]