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I am down help please

I am down help please-example-1
User Smithco
by
8.0k points

1 Answer

11 votes

Answer:

180 degrees

Explanation:

angle 1 = 90 degrees

angle 4 = angle 1 because they are vertical angles

360 - 90 - 90 = 180 degrees

User Shwetha
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8.6k points