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kakasveta [241]
3 years ago
11

A. 20 b. 5 c. 40 d. 45

Mathematics
2 answers:
AysviL [449]3 years ago
8 0
I think it could be B

By divide but iam not sure sorry if it wronge
Rina8888 [55]3 years ago
6 0

Answer:

C, 40

Step-by-step explanation:

You can set up the equation as 20+4x=180

180 is the total angle of the line

4x=160 and divide each side by 4

x=40

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\large \boxed{4.1}

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