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OpenStudy (anonymous):
How many sides does a regular polygon have if each exterior angle measures 30° ?
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OpenStudy (mathstudent55):
The sum of the measures of the extrior angles of a polygon, taken one per vertex, is 360. This is true no matter how many sides the polygon has.
OpenStudy (anonymous):
I don;t get it. My answer choices are a. 14 sides b. 12 sides c. 15 sides d. 11 sides
OpenStudy (mathstudent55):
Since the sum of all exterior angles is 360, and all angles are congruent (regular polygon), just divide 360 by 30.
OpenStudy (anonymous):
ohh okay thanks!:)
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