Angle 5 = 117° because it is vertical to angle 8 Angle 7 = 63° because it is symmetrical to angle 5 Angle 6 = 63° because it is vertical to angle 7. Angle 1 = 117° because it is corresponding to angle 5. Angle 2 = 63° because it is corresponding to angle 6. Angle 3= 117° because it is corresponding to angle 8. Angle 4 = 63° because it is corresponding to angle 7.
