👉 In geometry, an exterior of a polygon is defined as the set of all points that are not inside the polygon but rather lie on its boundary. In other words, it's the part of the polygon that is not bound by any sides or edges. For example, consider a triangle with vertices at A (2, 3), B (5, 4), and C (6, 7). The exterior of this triangle can be visualized as the set of all points outside the triangle
