A regular polygon has an exterior angle of 20 degrees. How many sides does it? Have? 20 36 18 40
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Answer:
The polygon has 18 sides.
Step-by-step explanation:
The sum of the exterior angles is 360°.
So with n sides, each angle is 360° / n.
Given: exterior angle = 20°
=> 360° / n = 20°
=> n = 360° / 20°
=> n = 18
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