Remember that the degree measure of each exterior angle of a polygon can be found through the formula
[tex]\dfrac{360}{n}[/tex]
where [tex]n[/tex] is the number of sides on the polygon.
Since a pentagon has five sides, the degree measures of each of its five sides would be:
[tex]\dfrac{360}{5} = 72^{\circ}[/tex]
Thus, our answer is Choice B, or 72 degrees.
