# Difference between revisions of "Trapezoid"

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SeanTheSheep (Talk | contribs) (properties) |
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The following properties arise from the definition: | The following properties arise from the definition: | ||

* Two of the pairs of adjacent angles sum to 180<sup>o</sup> | * Two of the pairs of adjacent angles sum to 180<sup>o</sup> | ||

− | * The area of the trapezium is the average of the parallel sides | + | * The area of the trapezium is the average of the parallel sides multiplied by the distance between them. |

[[Category:Geometry]] | [[Category:Geometry]] |

## Revision as of 17:48, 14 May 2007

A **trapezoid** (British: trapezium) is a four-sided polygon with two parallel sides.

The following properties arise from the definition:

- Two of the pairs of adjacent angles sum to 180
^{o} - The area of the trapezium is the average of the parallel sides multiplied by the distance between them.