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Through how many different positive angles less than 360 degrees is it possible to rotate a regular icosagon (20-gon) clockwise about its center such that its image coincides with the original icosagon?


I'm stuck on this, help will be appreciated! laugh

 Apr 24, 2020
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20 sides     so  20  partial rotations before you're back to where you started (360o

 Apr 24, 2020

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