2.  Vertical angles – are not adjacent, and their sides are formed by two intersecting lines  1 and 3 are vertical angles  2 and 4 are vertical angles 1 2 3 4

3.  Linear pair – two adjacent angles whose noncommon sides are on the same line  5 and 6 are a linear pair 56 Noncommon side common side

4. 1 2 3 4 5 6

5.  If two angles form a linear pair, then they are supplementary  m 1 + m 2 = 180˚ 12

6.  Find the measure of RSU › 118˚ R 62˚ S T U

7.  Vertical Angles are congruent  1 3 and  2 4 1 3 2 4

8.  Find the measure of CED 50˚ D A B C E

9.  Find m 1, m 2, and m 3 1 3 2 35˚

10.  Find the value of y  (4y-42) = 2y  -42 = -2y  21 = y 2y˚ (4y-42)˚

11.  Pg. 78 #1-8