How many sides does a 1980 degree polygon have?

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.