1. Applied Geometry Lesson: 8 – 3 Tests for Parallelograms Objective: Learn to identify and use tests to show that a quadrilateral is a parallelogram.

2. Theorem 8 – 7 If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram.

3. If both pairs of opp. sides of a quad are congruent, then the quad is a parall.

4. Def of segment bisector Vertical angles are congruent SAS CPCTC If both pairs of opp. sides of a quad are congruent, then the quad is a parall.

5. Theorem 8 – 8 If one pair of opposite sides of a quadrilateral is parallel and congruent, then the quadrilateral is a parallelogram.

6. Theorem 8 – 9 If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram.

7. Determine whether each quadrilateral is a parallelogram. If the figure is a parallelogram, give a reason for your answer. Yes, opposite sides congruent. Not a parallelogram Yes, diagonals bisect Yes, one pair opp. sides parallel and congruent.

8. Homework Pg. 324 1 – 6 all, 8 – 24 E