Three interior angles of a quadrilateral have measures of 100degree,120degree, and 80 degree. Find the fourth angle measure.
The fourth angle measure is..

Three interior angles of a quadrilateral have measures of 100degree120degree and 80 degree Find the fourth angle measure The fourth angle measure is class=

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Answer:

The fourth angle = 60°

Step-by-step explanation:

the sum of the interior angles of a quadrilateral is 360°.

The fourth angle = 360° - 100° - 120° - 80° = 60°

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