Polygon is simple closed circuit made by joining a finite number of line segments.
- Simple Polygon
We call a polygon “simple” when NO line segments of polygon intersect each other.
- Complex Polygon
We call a polygon “complex” when line segments of polygon intersect each other.
- Convex Polygon
If we just consider two point inside polygon and try to join them using a line segment and if the line segment do not lie outside the polygon then we call such a polygon “convex”. NO angle of polygon is greater than 180 degree in convex polygon.
- Concave Polygon
If we just consider two point inside polygon and try to join them using a line segment and if the line segment do lie outside the polygon then we call such a polygon “concave”. One or more than one angle of polygon is greater than 180 degree in concave polygon.