Answer
15 sides
Work Step by Step
E=$\frac{360}{n}$
n=$\frac{360}{E}$
n=$\frac{360}{24}$
n=15
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.