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Umnica [9.8K]
3 years ago
6

How do I solve this?

Mathematics
1 answer:
Artist 52 [7]3 years ago
4 0

360÷9=40°

2x+40=180

2x=180-40

2x=140

x=140÷2

x=70

angle is

2×70=140°

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4 0
3 years ago
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