1. Section 1-6 Angle Pair Relationships

2. Vertical angles Formed when two lines intersect. Vertical Angles are Congruent. 1 2

3. Linear pair Formed by two adjacent angles whose noncommon sides are opposite rays. 12

4. 1 5 4 3 2 Are and a linear pair? Are and vertical angles? Are and a linear pair? Are and vertical angles? Yes No

5. Complimentary angles Two angles whose measures have the sum of 90 degrees

6. 1 2 are complementary angles Each angle is called the complement of the other. Ex: is the complement of

7. 1 2 Example

8. Supplementary angles Two angles whose measures have the sum of 180 degrees

9. 3 4 are supplementary angles. Each angle is called the supplement of the other. Ex: is the supplement of

10. Example 3 4