3 years ago

Can someone please help with this one

Mathematics

1 answer:

bagirrra123 [75]3 years ago

7 0

Answer:

m∠8 = 123°

Step-by-step explanation:

∠1 and ∠8 are alternate exterior angles, and since lines A and B are parallel, then they must be congruent.

So, m∠1 = m∠8

Substitute: 123 = m∠8

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