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31 May, 19:16

What is the measure of each exterior angle of a decagon?

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  1. 31 May, 19:19
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    The sum of all of the exterior angles of any regular polygon is 360 (I'm assuming by decagon you mean a regular dodecagon).

    Because the total has to be 360, and a decagon has 10 sides, you divide 360 by 10 to get each exterior angle.

    360 : 10 = 36, so each exterior angle of a decagon is 36 degrees.
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