1) 156. Interior angles equal 180
2) 30. Angles diagonal from each other are equal
3) 10. Set each angle equal to each other and solve for x
4) 72. Angles diagonal from each other are equal
5) 59. 180-121 is 59
6) 145. Interior angles equal 180
7) 132. Angles that alternate are the same when lines are parallel
8) 124. Set angle 1 and 2 to equal 180 to solve for x. Multiply x by 4 (angle one) and you should get 124 (angle 8)
9) 60. 180-120 is 60
10) 70. Since the lines are parallel angles are the same. 180-110 is 70