The exterior angles of every polygon sum to 360 degrees.
The interior angles of every quadrilateral sum to 360 degrees.
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the center angle of any polygon is 360 degrees
To calculate the measure of a central angle of a regular nine-sided polygon, divide 360 degrees by the number of sides. In this case, divide 360 by 9. The measure of the central angle of a regular nine-sided polygon is 40 degrees.
360 degrees
You measure it. An interior angle of an ordinary polygon can have any value in the range (0, 360) degrees excluding 180 degrees. There is no constraint on the size of a single angle.
360 degrees.