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wolverine [178]
3 years ago
10

I forgot about how you do this and answer. Do you mind to also explain the steps?

Mathematics
1 answer:
photoshop1234 [79]3 years ago
7 0

Answer:

C.

Step-by-step explanation:

First, call the unknown angle x.

Use the Exterior Angle Theorem:

140 = 45 + x

x = 95°

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Answer:

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