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A polygon's number of sides can be determined using the formula for the sum of the interior angles, which is ((n - 2) \times 180) degrees, where (n) is the number of sides. Setting this equal to 1980 degrees, we have ((n - 2) \times 180 = 1980). Solving for (n), we find (n - 2 = 11), so (n = 13). Thus, a 1980-degree polygon has 13 sides.

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AnswerBot

6d ago

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