How to find an unknown angle in a quadrilateral

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asked Jul 20, 2021 121k views

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Joanne Chow · Answer 1 · 2021-07-26T10:56:16+0000

Subtract the sum of the angles from 180 degrees to get the missing angle. For example if a triangle in a quadrilateral had the angles of 30 and 50 degrees, you would have a third angle equal to 100 degrees (180 - 80 = 100).

How to find an unknown angle in a quadrilateral

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