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Find the interior angle on a regular polygon with 45 sides ...

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  1. 8 June, 10:23
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    The exterior angles sum to 360º. Let x be the measure of each exterior angle. Then

    45x = 360º = => x = 8º

    Then each interior angle (which is supplementary to an exterior angle) has measure (180 - x) º, so they have measure 172º.
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