### Instruction: A regular polygon has an exterior angle that measures $15$ degrees. How many sides does the polygon have?### Response: 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.