1260 degrees
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1260 degrees
1260
Sum= 2340 Degrees A+
There is no such thing as a nanogon. However, there is a geometrical figure called a nonagon. An interior angle of a nonagon can have any value between 0 and 360 degrees (except 180); the only restriction is that the sum of all nine interior angles of a nonagon is 1260 degrees.
There is no regular polygon with an interior angle of 20o. If the interior angle is 120o then there are six sides and the sum of the angles is 720o.