Each exterior angle of a regular decagon has a measure of (3x + 6)°. What is the value of x? open study

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asked Aug 16, 2018 42.8k views

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Krayo · Answer 1 · 2018-08-22T13:15:33+0000

The sum of exterior angles for a polygon is 360°. This is a decagon, having ten sides, so each exterior angle will be 360/10=36°, so we can say:

3x+6=36 subtract 6 from both sides

3x=30 divide both sides by 3

x=10°

Each exterior angle of a regular decagon has a measure of (3x + 6)°. What is the value of x? open study

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