360/9 ie 40 degrees
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The sum of the exterior angles in any polygon is 360 degrees. A nonagon has 9 sides, so to work out a single exterior angle, we divide 360 by 9, which is 40.
Each exterior angle is: 360/9 = 40 degrees
Each interior angle is 140 degrees. Each exterior angle is 220 degrees.
It is 360/9 = 40 degrees.
360/9 = 40 degrees