C. 144°
The formula to calculate the measure of an interior angle in a regular polygon is (n-2) * 180 / n, where n is the number of sides.
For a dodecagon, n = 12. Plugging this into the formula, we get (12-2) * 180 / 12 = 10 * 180 / 12 = 1800 / 12 = 150°.
Therefore, the measure of an interior angle of a regular dodecagon is 150°.
What is the measure of an interior angle of a regular dodecagon (12-gon)?
A.
180°
B.
150°
C.
144°
D.
135°
1 answer