# Perimeter of Parallelograms

We know four kinds of **parallelograms**. They are a square, a rectangle, a rhombus and a rhomboid. They have their own formulas to calculate their perimeters.

Topic Name | Formula |
---|---|

Perimeter of Square | P = 4 × a |

Perimeter of Rectangle | C = 2 × (a + b) |

Perimeter of Rhombus | C = 4 × a |

Perimeter of Rhomboid | C = 2 × (a + b) |