freeCodeCamp/guide/english/mathematics/area-of-a-rectangle/index.md

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2018-10-12 19:37:13 +00:00
---
title: Area of a Rectangle
---
## Area of a Rectangle
The area of a rectangle can be calculated by multiplying the lengths of the two perpendicular sides together.
`Area = a x b`
**For Example**
For a rectangle where *a = 3* and *b = 4*
`Area = a x b = 3 x 4 = 12`
#### More Information:
* [Virtual Nerd](http://virtualnerd.com/pre-algebra/perimeter-area-volume/perimeter-and-area/area-formulas-examples/rectangle-area-example)