If l || m, angle 3 = 140 degrees, and angle 14 = 119 degrees, find angle 18.
+130116 Angle 14 =Angle 8
Angle 7 = 180 - Angle 8 = 180 - 119 = 61
Angle 6 = 180 - Angle 3 = 180 - 140 = 40
Angle 9 = 180 - Angle 7 - Angle 6 = 180 - 61 - 40 = 79 = Angle 11
Angle 16 = 180 - Angle 14 = 180 - 114 = 66
Angle 20 = 180 - Angle 11 - Angle 16 = 180 - 79 - 66 = 35 = Angle 18
