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insens350 [35]
2 years ago
8

HELPP YALL! ILL MARK BRAINIEST!!! LOOK AT PICTURE!!!

Mathematics
1 answer:
Rufina [12.5K]2 years ago
6 0

m∠3 = 180 - m∠8 = 180 - 123 = 57

m∠1 = m∠3 = 57°

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Please help! 12 points
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Step-by-step explanation:

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Zanzabum

Answer:

\beta=45\degree\:\:or\:\:\beta=135\degree

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