# Polygon Calculator

Calculate the various properties of Area of Polygon for given values.

**Type of polygons with definition and shape :**

Polygons Type | Definition | Shape |

Regular polygons | The polygon having all sides and interior angles of the same size. | |

Irregular polygons | Every side and angle may be of different size. | |

Convex polygons | Every interior angles are < 180° and every vertices "point outwards" away from the interior. The regular polygons are always convex. | |

Concave polygons | One or more interior angles > 180° and some vertices push "inwards" towards the interior of the polygon. | |

Crossed polygons | The The polygon where any or more sides are crossing back over another side means forming multiple smaller polygons. |