1. Geometry Section 1.5 Describe Angle Pair Relationships

2. Complementary Angles Two angles whose sum of their measures is 90°

3. Supplementary Angles Two angles whose sum of their measures is 180°

4. Adjacent Angles Two angles that share a common vertex and side, but have no common interior point.

5. Linear Pair Two adjacent angles are a linear pair if their noncommon sides are opposite rays. The angles in a linear pair are supplementary angles

6. Vertical Angles Two angles are vertical angles if their sides form two pairs of opposite rays

7. Linear Pairs Vertical Angles

8. Examples ClassZone - Geometry, 2007

9. Assignment Section 1.5 Page 38 Problems #4 – 18 even, 20 – 27, 30, 32, 34 – 38, 40, 42, 49 – 52