Question 40

What is the measure of an exterior angle of a regular dodecagon?

Solution

Sum of all exterior angles of any polygon = $$360$$°

Number of sides of dodecagon, $$n = 12$$

In a regular decagon, all sides are equal and thus all angles are equal.

$$\therefore$$ Measure of each exterior angle = $$\frac{360}{12} = 30$$°

=> Ans - (D)

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