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- Answer:1 step is c=50°
- d=30°
- a,c,d are angle of tringle
- a+c+d=180
- c,d already we have a+30+50=180
- a=100°
- d+e=180
- e=150°
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50° + a + 30° = 180°[liner pair]
a = 180°-50°-30°
a = 180°-80°
a = 100°
a + 30° = b [vertical opposite angle]
100° + 30° =b
b = 130°
b + c = 180° [liner pair]
130° + c = 180°
c = 180°- 130°
c = 50°
d = 30 [vertical opposite angle]
e = 50° + a
e = 50°+ 100°
e = 150°
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