How is the individual exterior angle of a regular polygon calculated?

To calculate the individual exterior angle of a regular polygon, the formula used is 360 divided by the number of sides. This is because the sum of all exterior angles of any polygon is always 360 degrees, regardless of the number of sides. Since a regular polygon has equal exterior angles, dividing 360 by the number of sides gives the measure of each exterior angle.

For example, if a polygon has 5 sides (a pentagon), the measure of each exterior angle would be calculated as 360 / 5, which equals 72 degrees. This consistent relationship holds true for any regular polygon, making option B the correct selection for calculating individual exterior angles.