Sufficient Conditions for Quadrilaterals to Be Parallelograms
You can now use the conditions for parallelograms to prove that a quadrilateral is a parallelogram.
Example
| Given: |
Quadrilateral FORW is a parallelogram. L is the midpoint of E is the midpoint of |
| Prove: | Quadrilateral FLRE is a parallelogram. |
Solution
Proof:
