Determined the sum of the interior angles of a polygon with
 Determined the sum of the interior angles of a polygon with vertices located at (-3, 4), (0, 7), (1, 4), (-1, -4), and (-4, 0) 
 
 Determined the sum of the exterior angles of a polygon with vertices located at (-11,7), (-8, 9), (-5,7), (-2, 3), (-4, 3), and (-9, 5)
  Determined the sum of the interior angles of a polygon with vertices located at (-3, 4), (0, 7), (1, 4), (-1, -4), and (-4, 0) 
 
 Determined the sum of the exterior angles of a polygon with vertices located at (-11,7), (-8, 9), (-5,7), (-2, 3), (-4, 3), and (-9, 5)
 Determined the sum of the exterior angles of a polygon with vertices located at (-11,7), (-8, 9), (-5,7), (-2, 3), (-4, 3), and (-9, 5)
Solution
(a) Since there are 5 vertices, the figure is a pentagon.
Sum of interior angles of a polygon is given by the formula (n-2) * 180, where n is the number of sides. Here n = 5.
Therefore sum of the interior angle of the pentagon = (5 - 2) * 180 = 3 * 180 = 540o.
(b) The sum of the exterior angles of any polygon, irrespective of the number of vertices is always equal to 360o.

