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17 April, 00:56

Each exterior angle of a regular decagon has a measure of (3x + 6) °. What is the value of x? x = 8 x = 10 x = 13 x = 18

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  1. 17 April, 02:57
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    The sum of exterior angles is 360°, since this is a decagon (having ten sides), each exterior angle is 360/10=36° so:

    3x+6=36 subtract 6 from both sides

    3x=30 divide both sides by 3

    x=10°
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