Question 532935
The sum of the interior angles of a 14-gon = (14-2)*180 = 2160 degrees.
There are 14 vertexes (vertices) for a 14-gon.
It is 'regular' so all these angles are equal.
2160/14 = 154.285 degrees
So the exterior angle of each is 180-154.285 = 21.715 degrees.
To check, 14*21.715 = 360.01 degrees, so that's about right.