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Thepotemich [5.8K]
3 years ago
5

The diagram shows three straight lines.

Mathematics
1 answer:
ElenaW [278]3 years ago
7 0

Answer:

a=21°b=70°c=89°

Step-by-step explanation:

a=21°[by vertical opposite angle]

b+110°=180°[by linear angle]

b=180°-110°=70°

a+b+c=180°[by sum of all angle]

21°+70°+c=180

91°+c=180°

c=180°- 91°

c=89°

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