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The exterior angle of a regular polygon is the angle formed by an extended side and the adjacent side.

a)what is the measure of each interior angel of a regular pentagon.

(There is apicture on the page and each side measures 21mm)

Help please.

  • MATH -

    As I said in response to a previous question, the sum of the exterior angles is 360 degrees. If all N angles are the same (as in the case of a regular polygon), divided 360 by N for the exterior angle of each.

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