Answer:
10. 4) 62°
11. 1) 100° 2) 80° 3) 100°
12. 1) 47° 2) 133° 3) 47°
Step-by-step explanation:
10. since 118° and angle 4 are on a straight line they would equal to 180° so you do 180-118 to get angle 4
11. angle 2 is the same as the angle that's 80° to get angle 3 you subtract 80 from 180 and that's the same as angle 1
12. angle 2 is the same as the angle that's 133° and since angle 1 and 3 are the same you just subtract 133 from 180 to equal those 2 angles
