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17 September, 23:27

How many sides does a regular polygon have that has an angle of rotation equal to 20 degrees? how many lines of symmetry will it have?

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  1. 17 September, 23:36
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    The polygon will have 18 sides, because a full rotation is 360 degrees, and if you divide that by 20 degrees (its angle of rotation) you get 18.

    Also, a regular n-gon will have n lines of symmetry, so this polygon will have 18 lines of symmetry.
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