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16-12-2019
Mathematics

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A quadrilateral has angles measuring 100° 90° 90° find the measure of its fourth angle

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10-02-2021

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Answer:

80°

Step-by-step explanation:

The sum of angles in a quadrilateral is 360°, so the missing angle is ...

4th angle = 360° -100° -90° -90° = 80°

The measure of the fourth angle is 80°.

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