If the side of a triangle is extended, the angle formed outside the triangle is the exterior angle. \(g\) is the interior angle. \(h\) is the exterior angle. \(g + h = 180^\circ\) The interior ...

div \text{number of sides}\) If the side of a polygon is extended, the angle formed outside the polygon is the exterior angle. The sum of the exterior angles of a polygon is 360°. The sum of exte ...