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Mathematics 13 Online
OpenStudy (anonymous):

The roof of a circus tent is supported by 15 poles that are equally spaced. This makes the base of the roof a regular polygon as shown. How many degrees does each corner measure?

OpenStudy (mathstudent55):

For a polygon of n sides, the sum of the measures of the interior angles is (n - 2)180. Calculate that first. Then since you have a _regular_ polygon, all interior angles are congruent.

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