Final answer:
The measure of one exterior angle in a regular polygon is found by dividing 360 degrees by the number of sides of the polygon.
Step-by-step explanation:
To find the measure of one exterior angle of a regular polygon, we can use the fact that the sum of the exterior angles of any polygon is always 360 degrees. Given that a regular polygon has all sides and angles equal, each exterior angle can be found by dividing 360 degrees by the number of sides (n) of the polygon. So, the measure of one exterior angle is = 360°/n.