Ways to prove parallelograms/quadrilaterals

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  1. Both pair of opposite sides parallel
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  2. Opposite angles are congruent
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  3. Consecutive angles (same side interior angles) are supplementary
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  4. If one angles is a right angle, than all four are right angles
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  5. The diagonals bisect each other
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  6. Opposite sides are congruent
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  7. (quads parallel)
    both pair opposite sides are parallel then the quad is a parallelogram (DEF OF PARALLELOGRAM)
  8. (quads parallel)
    both pair opposite sides congruent then the quad is a parallelogram
  9. (quads parallel)
    both pair opposite angles congruent then a quad is a parallelogram
  10. (quads parallel)
    diagonal bisect each other than the quad is a parallelogram
  11. ***(quads parallel)
    one pair of opposite sides are congruent and parallel
Author:
Anonymous
ID:
16695
Card Set:
Ways to prove parallelograms/quadrilaterals
Updated:
2010-04-28 23:51:25
Tags:
Geometry parallelograms
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Description:
geometry
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