POLYGONS 

Yes, it’s another Greek word. ‘Poly’ meaning multiple or more than 2 in this case, and ‘gon’ meaning angle. So a polygon is a geometric 2-dimensional figure made up of 3 or more line segments, called sides, and has 3 or more angles.  

There are 2 more requirements for a polygon: 

·        The sides of a polygon are connected end to end and make a closed path. 

·        The sides of a polygon do not cross (intersect). 

Here are some samples of polygons:

    These are not polygons:

 Convex polygons – is a polygon in which all the sides are pushed outward. 

 Nonconvex (concave) polygons have at least two sides pushed in. 

 A polygon is a regular polygon if: 

·        The sides are all the same length

·        The angles are all the same size.