Question

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

Answer 1

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°

Answer 2

Answer:

B. x=10

Step-by-step explanation:

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