A regular polygon has the sum of its interior angles equals twice the sum of its exterior angles. a. Determine the number of sides of the regular polygon. b. Determine the number of diagonals of the regular polygon.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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A regular polygon has the sum of its interior angles equals twice the sum of its exterior angles. a. Determine the number of sides of the regular polygon. b. Determine the number of diagonals of the regular polygon.
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