Mathsterrible Mathsterrible

25-10-2018
Mathematics

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If the measure of an exterior angle of a regular polygon is 20 degrees, how many sides does the polygon have?

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lilianna1399 lilianna1399

25-10-2018

the regular polygon would have 18 sides. because you do 180 deg-20deg=160 deg. then multiply 160 and 18 to get to2880. each exterior angle of a polygon is 20 degress. so the polygon has 360/20=18 sides. (i think)

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