Question

Find the measure of each interior angle of a regular dodecagon.

Answer 1

dodecagon has 12 sides, so its exterior angle is 360/12 = 30. and hence its interior angle will be 180-30 = 150

Answer 2

How many sides does a dodecagon have? Once you figure that out, you just have use the formula "sum of interior angles"=(n-2)*180 degrees. Where n is the number of sides. Once you find the total, divide it by n to get the measure of each interior angle.