A regular polygon has an exterior angle that measures $15$ degrees. How many sides does the polygon have?
I know that the exterior angles of a regular polygon are all equal, and that they add up to $360$ degrees. So, if I divide $360$ by $15$, I should get the number of exterior angles, which is the same as the number of sides. Dividing $360$ by $15$, I get $24$. So, the polygon has $24$ sides. 