Difference between revisions of "Parallelogram"
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| − | A '''parallelogram''' is a | + | A '''parallelogram''' is a [[quadrilateral]] in which both pairs of opposite sides are parallel. Its properties include: |
* Opposite sides are [[parallel]]. | * Opposite sides are [[parallel]]. | ||
Revision as of 10:46, 9 July 2007
A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel. 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.
