INTERIOR ANGLES SUM ASSIGNMENT

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Solve for x.

 

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  1. 58 degrees

    The sum of the exterior angles of a polygon is 180 (n – 2), where n represents the number of sides. The sum of the angles of a pentagon (five sides) is equal to

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    The pentagon is missing one interior angle, which you can call y:

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    The interior and exterior angles of a polygon are supplementary. Therefore,

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  2. 20 degrees

    The sum of the interior angles of a polygon is 180 (n – 2), where n represents the number of sides. The sum of the angles of a hexagon (six sides) is equal to

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    Add the interior angles, set the sum equal to 720, and solve for x:

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