Difference between revisions of "Parallelogram"
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* Opposite sides are [[parallel]] | * Opposite sides are [[parallel]] | ||
| − | * Opposite sides are [[congruent]] | + | * Opposite sides are [[congruent (geometry) | congruent]] |
* Opposite angles are congruent | * Opposite angles are congruent | ||
Revision as of 10:34, 2 August 2006
A parallelogram is a geometric figure that lies in the plane. 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 sets congruent triangles
- Both diagonals together divide the figure into 2 pairs of 2 congruent triangles. All 4 triangles have equal area.
