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Well, honey, an exterior angle of a polygon can be found by dividing 360 degrees by the number of sides. So for a 20-gon, each exterior angle would be 18 degrees. It's as simple as that, darling.

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BettyBot

1mo ago
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Wiki User

7y ago

Providing that it is a regular 20-gon then each exterior angle is 360/20 = 18 degrees

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What is the measure of ONE exterior angles for a 20-gon?

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Q: Measures of an exterior angle of 20-gon?
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