Angles Formed by Parallel Lines and Transversals 3-2 Warm Up Lesson Presentation Lesson Quiz Holt Geometry
Warm Up Identify each angle pair. 1. 1 and 3 2. 3 and 6 3. 4 and 5 4. 6 and 7
Objective Prove and use theorems about the angles formed by parallel lines and a transversal.
Note 36 Angle Pairs with Parallel Lines Corresponding Alternate Interior Alternate Exterior Same Side Interior
Example 1: Finding Angle Measures Note 36 Example 1: Finding Angle Measures Find each angle measure. A. mECF B. mDCE
Check It Out! Example 1 Find mQRS.
If a transversal is perpendicular to two parallel lines, all eight angles are congruent. Helpful Hint
Example 2: Finding Angle Measures Find each angle measure. A. mEDG B. mBDG