2340
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find the sum of the measures of the interior angles of 13-gon.
180(n-2) for sum and {180(n-2)}/n for an angle.
Sum of exterior angles = 360 deg Sum of interior angles = (29-2)*180 = 4860 degrees.
It is: 1620 degrees
Exterior angles add up to 360 degrees Interior angles add up to 6300 degrees