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

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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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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User Sjking
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2 Answers

2 votes

Answer:

B. x=10

Explanation:

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User Mppf
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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°
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User Krayo
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