Sum Of Interior And Exterior Angles Of A Polygon. Angles of a polygon. For our equilateral triangle the exterior angle of any vertex is 120 120.
The exterior angle of a regular n-sided polygon is 360n Worksheet using the formula for the sum of exterior angles Worksheet using the formula for the sum of interior and exterior angles. Substitute the number of sides of the polygons n in the formula n - 2 180 to compute the sum of the interior angles of the polygon. Sum of Interior Angles of a Polygon with Different Number of Sides.
In any polygon the sum of an interior angle and its corresponding exterior angle is 180.
Hence the sum of interior exterior angles for 19 vertices 19 x 360 6840. The sum of interior angles of a regular polygon and irregular polygon examples is given below. The sum of exterior angles of any polygon is 360. Interior and exterior angle formulas.
