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Mathematics 14 Online
OpenStudy (anonymous):

How many sides does a regular polygon have if each exterior angle measures 72o?

OpenStudy (anonymous):

720°?

OpenStudy (anonymous):

degrees

OpenStudy (anonymous):

the sum of the exterior angles is always 360

OpenStudy (anonymous):

so divide 360 by 72

OpenStudy (anonymous):

5 angles of 72

OpenStudy (anonymous):

therefore 5 sides since it is a regular polygon

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