It is 360/9 = 40 degrees.
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If you mean each exterior angle of a regular 9 sided nonagon then it is 360/9 = 40 degrees
Each interior angle is 140 degrees. Each exterior angle is 220 degrees.
360/9 = 40 degrees
Each exterior angle is: 360/9 = 40 degrees
It's impossible to tell, unless it's a regular nonagon. All we're sure of isthat all nine of them total up to 360 degrees.If it happens to be a regular nonagon, then each one is 40 degrees.