Difference between revisions of "Parallelogram"
(New page: A 4-sided polygon with opposite sides parallel.) |
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| − | A 4-sided [[polygon]] with opposite sides parallel. | + | A '''parallelogram''' is a 4-sided [[polygon]] with opposite sides parallel. |
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| + | [[Image:parallel.gif]] | ||
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| + | It has the following properties: | ||
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| + | * Opposite sides are equal | ||
| + | * [[Diagonal]]s [[bisect]] each other | ||
| + | * Opposite angles are equal | ||
| + | * Adjacent angles sum to 180<sup>0</sup> | ||
| + | * It has rotational symmetry of order at least 2. | ||
| + | * Its area is equal to its base multiplied by its vertical height | ||
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| + | The set of [[rhombus]]es (rhombi) is a subset of the set parallelograms. | ||
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| + | [[Category:Plane Geometry]] | ||
Latest revision as of 17:13, July 13, 2016
A parallelogram is a 4-sided polygon with opposite sides parallel.
It has the following properties:
- Opposite sides are equal
- Diagonals bisect each other
- Opposite angles are equal
- Adjacent angles sum to 1800
- It has rotational symmetry of order at least 2.
- Its area is equal to its base multiplied by its vertical height
The set of rhombuses (rhombi) is a subset of the set parallelograms.