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
