# Difference between revisions of "Rectangle"

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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>. | ||

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As a result of this defintion: | As a result of this defintion: | ||

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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]]. | ||

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===Notes=== | ===Notes=== | ||

<references/> | <references/> | ||

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[[category:geometry]] | [[category:geometry]] |

## Revision as of 04:11, 14 May 2007

A polygon of four sides where every angle is a right angle (90°)^{[1]}.

As a result of this defintion:

- Each pair of opposite sides is of equal length.
- Opposite sides are parallel
- Diagonal are equal
- Adjacent sides are perpendicular

However, the adjacent sides do not need to be of equal length.

A specific case of a rectangle is is the square, which is also a rhombus.

### Notes

- ↑ 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