What is the sum of the measures of the interior angles of a 12 -gon?
Answer
A
1800 degrees
B
1620 degrees
C
2160 degrees
D
1980 degrees
Explanation
The sum of the interior angles of an n-sided polygon is (n − 2) × 180°. For a 12-gon, this is (12 − 2) × 180° = 10 × 180° = 1,800°. So the correct choice is 1,800 degrees.
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