(N - 2)*180 = (9 - 2)*180 = 1260 degrees.
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The exterior angles of a nonagon add up to 360 degrees.
A nonagon is a 9 sided polygon whose 9 interior angles add up to 1260 degrees
The interior angles of a 9 sided nonagon add up to 1260 degrees and its exterior angles add up to 360 degrees
what is the total of interior angles in a nonagon?
what is the total of interior angles of the nonagon