1. TODAY IN GEOMETRY…  Review: Identifying angles formed by a transversal  Learning Goal: 3.2-3.3 Use Angle Theorems and converses formed by parallel lines and a transversal  Independent Practice  Ch.3 QUIZ – Friday!

2. 1 2 34 56 7 8

3. CORRESPONDING ANGLES (CA) for PARALLEL LINES: IF lines are parallel THEN corresponding angles are CONGRUENT. 1 2 3 4 56 7 8

4. 1 2 3 4 56 7 8 ALTERNATE INTERIOR ANGLES (AIA) for PARALLEL LINES: IF lines are parallel THEN alternate interior angles are CONGRUENT.

5. ALTERNATE EXTERIOR ANGLES (AEA) for PARALLEL LINES: IF lines are parallel THEN alternate exterior angles are CONGRUENT. 1 2 3 4 56 7 8

6. CONSECTUTIVE INTERIOR ANGLES (CIA) for PARALLEL LINES: IF lines are parallel THEN consecutive interior angles are SUPPLEMENTARY. 1 2 3 4 56 7 8

7. EXAMPLE: Find the values for x and y. 135 ° xy =135 ° 45 °=

8. PRACTICE: Find x.

13. **Converse to Corresponding Angles Theorem

14. **Converse to Consecutive Interior Angles Theorem

15. EXAMPLE PROOF: Statement Reason 1. Given. 2. Alternate Interior Angles Converse 1 2 3 4 56 7 8

16. EXAMPLE PROOF: Statement Reason 1. Given. 2. Corresponding Angles Theorem 1 2 3 4 56 7 8

17. HOMEWORK #2: Pg. 157: 4-19, 22-24, 27-31, 33, 35, 36 Pg. 165: 3-15, 19-21, 23, 26, 27 If finished, work on other assignments: HW #1: Pg. 150: 11-15, 18-23, 24-32, 43-44