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Question

Find the measure of each exterior angle of a 9-sided regular polygon.

A
40°
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B
50°
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C
45°
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D
30°
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Solution

The correct option is A 40°

Sum of exterior angles of any sided polygon = 360°
Sum of 9 exterior angles = 360°

1 exterior angle = 360° ÷ 9 = 40°


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