# Polygons

Categories: gcse geometry

A polygon is a shape made up of straight sides. Polygons include triangles, rectangles, parallelograms, pentagons, hexagons and so on. This sections explores the different types and properties of polygons:

- Regular polygons (shapes where each side is the same length and each angle is the same).
- Interior and exterior angles.
- Different types of triangle.
- Different types of quadrilateral.
- Other types of polygons.
- Star polygons.
- Symmetry.
- Tesselation (tiling shapes).

## See also

- Regular polygons
- Interior and exterior angles of a polygon
- Triangles
- Quadrilaterals
- Quadrilateral family tree
- Pentagons - polygons with 5 sides
- Hexagons - polygons with 6 sides
- Heptagons - polygons with 7 sides
- Octagons - polygons with 8 sides
- Nonagons - polygons with 9 sides
- Decagons - polygons with 10 sides
- Hendecagons - polygons with 11 sides
- Dodecagons - polygons with 12 sides
- n-gons - polygons with any number of sides
- Other types of polygon
- Star polygons

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