Difference between revisions of "Parallelogram"
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| − | A '''parallelogram''' is a [[ | + | A '''parallelogram''' is a special [[quadrilateral]]. Its properties include: |
* Opposite sides are [[parallel]] | * Opposite sides are [[parallel]] | ||
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* Opposite sides are [[congruent (geometry) | congruent]] | * Opposite sides are [[congruent (geometry) | congruent]] | ||
| − | * Opposite | + | * Opposite [[angle]]s are congruent |
* Consecutive angles are [[supplementary]] | * Consecutive angles are [[supplementary]] | ||
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* [[Diagonal]]s [[bisect]] each other | * [[Diagonal]]s [[bisect]] each other | ||
| − | * Each diagonal divides the figure into 2 | + | * Each diagonal divides the figure into 2 congruent [[triangle]]s |
* Both diagonals together divide the figure into 2 pairs of 2 congruent triangles. All 4 triangles have equal area. | * Both diagonals together divide the figure into 2 pairs of 2 congruent triangles. All 4 triangles have equal area. | ||
Revision as of 09:55, 30 August 2006
A parallelogram is a special quadrilateral. Its properties include:
- Opposite sides are parallel
- Opposite sides are congruent
- Opposite angles are congruent
- Consecutive angles are supplementary
- Each diagonal divides the figure into 2 congruent triangles
- Both diagonals together divide the figure into 2 pairs of 2 congruent triangles. All 4 triangles have equal area.
