Difference between revisions of "Parallelogram"
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A '''parallelogram''' is a special [[quadrilateral]]. Its properties include: | A '''parallelogram''' is a special [[quadrilateral]]. Its properties include: | ||
| − | * Opposite sides are [[parallel]] | + | * Opposite sides are [[parallel]]. |
| − | * Opposite sides are [[congruent (geometry) | congruent]] | + | * Opposite sides are [[congruent (geometry) | congruent]]. |
| − | * Opposite [[angle]]s are congruent | + | * Opposite [[angle]]s are congruent. |
| − | * Consecutive angles are [[supplementary]] | + | * Consecutive angles are [[supplementary]]. |
| − | * [[Diagonal]]s [[bisect]] each other | + | * [[Diagonal]]s [[bisect]] each other. |
| − | * Each diagonal divides the figure into 2 congruent [[triangle]]s | + | * Each diagonal divides the figure into 2 congruent [[triangle]]s. |
* Both diagonals together divide the figure into 2 pairs of congruent triangles. All 4 triangles have equal area. | * Both diagonals together divide the figure into 2 pairs of congruent triangles. All 4 triangles have equal area. | ||
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* [[Rectangle]] | * [[Rectangle]] | ||
| − | * [[Square (geometry) | | + | * [[Square (geometry) | Square]] |
* [[Rhombus]] | * [[Rhombus]] | ||
Revision as of 02:54, 31 October 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 congruent triangles. All 4 triangles have equal area.
