The measure of each exterior angle of a regular decagon is 36°. Hence, option B is the best choice.
What is a polygon?
A polygon is a close figure made up of many line segments.
The number of line segments makes the sides of the polygon.
A regular polygon is one when each of its sides is of equal lengths, all interior angles are of the same measure, and all exterior angles are of the same measure.
How to solve the question?
In the question, we are asked to find the measure of each exterior angle of a regular decagon.
A regular decagon is a 10-sided polygon.
As we know, in a regular polygon, all its exterior angles have the same measure.
Also, the sum of the exterior angles of any polygon is always 360°.
Thus, the measure of each exterior angle of a regular decagon is:
360°/10 = 36°.
Thus, the measure of each exterior angle of a regular decagon is 36°. Hence, option B is the best choice.
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