Answer:
18. 56
19. 132
20. 55
21. 120
22. 129.5
23. 61.3
Step-by-step explanation:
First look at the lines arrangment
angle 1+angle 5=180 and according to corresponing angles theorem angle 5 and angle 2 are equivalent. Angle 1+4=180
180-124=56
Angle 2+3=180
180-48=132
According to corresponding angles
angle 4=angle 7 and angle 7=angle 2 meaning angle 4=5
so angle 5=2
Like everything opposite to each other is conr=gruent
angle 8=angle 1 and angle 1=angle 6
means both angle 6 and 8 are congruent.
LOOK angle 7+3=180 means angle 2+6=180
so if ANGLE 7=50.5
6=3
180-50.5=129.5
23. angle 6 and 3 are congruent and as you know angle 7+3=180 and angle 2+6=180
angle 3+angle 6=180
180-118.7=61.3
18. Measure of angle 1=124 then angle 4=56
19.Angle 2= 48 then angle 3=132
20.Angle 4=55 then angle 2=55
21. angle 6=120 then angle 8=120
22.angle 7=50.5 then angle 6=129.5
23.angle 3=118.7 then angle 2=61.3
Hope this helps!!
It's mostly corresponding angles and theorems rules.
