The sum of the exterior angles of ANY polygon is 360 degrees.
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Exterior angles 360 degrees Interior angles 900 degrees
The 7 interior angles of a heptagon add up to 900 degrees
Answer: 360º
360
It is called a Heptagon. The sum of the measures of the angles of a heptagon is 900 degrees. See the related link for more info on types of polygons.