Polygon:Polygon is a representation of the surface. It is primitive which is closed in nature. It is formed using a collection of lines. It is also called as manysided figure. The lines combined to form polygon are called sides or edges. The lines are obtained by combining two vertices. Example of Polygon:
Following figures shows some polygons. Types of Polygons
A polygon is called convex of line joining any two interior points of the polygon lies inside the polygon. A nonconvex polygon is said to be concave. A concave polygon has one interior angle greater than 180°. So that it can be clipped into similar polygons. A polygon can be positive or negative oriented. If we visit vertices and vertices visit produces counterclockwise circuit, then orientation is said to be positive.
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