Interior Angles And Exterior Angles Of Polygons. The sum of the measures of the exterior angles of a polygon one at each vertex is 360. Find the sum of the measures of interior angles of polygons.
Since you are extending a side of the polygon that exterior angle must necessarily be supplementary to the polygons interior angle. When we add up the Interior Angle and Exterior Angle we get a straight line 180. Interior angle exterior angle polygon Background Knowledge.
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These 2 tutorials and 2 worksheets can be used to develop formulae that connect the number of sides interior angle and exterior angle of a regular polygon the sum of interior and exterior angles in any polygon. Interior and Exterior angles of polygons. A Polygon is any flat shape with straight sides. For a square the exterior angle is 90.