A polygon is a closed figure made by connecting line segments, where each line segment end connects to only one end of two other line segments.
1. Triangle - A three-sided polygon.
2. Quadrilateral - A four-sided polygon.
3. Pentagon - A five-sided polygon.
4. Hexagon - A six-sided polygon.
5. Heptagon - A seven-sided polygon.
6. Octagon - An eight-sided polygon.
8. Decagon - A ten-sided polygon.
9. Undecagon – an eleven-sided polygon.
10. Dodecagon – twelve-sided polygon.
