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Math question pls help me

Math question pls help me-example-1
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User Usersam
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1 Answer

6 votes

Answer:

A. 45°

Explanation:

The sum of all the angles in a quadrilateral must be 360. This means that you need to subtract 135, 90, and 90 from 360 to get the unknown angle.

360 - 90 - 90 - 135 = 45°

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User Bente
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