Sunday, January 11, 2009

Chapter 6, Lesson 3

Proving Parallelograms

1. If both pairs of opposite sides are parallel
2. If both pairs of opposite sides are congruent
3. Both pairs of opposite angles are congruent
4. Any angle is supplementary to both of its consecutive angles
5. Diagonals bisect each other
6. One pair of opposite sides are congruent and parallel

Joe Ruskey

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