A rectangle can either be defined as a four sided quadilateral or an equiangular quadilateral meaning that all of its angles are equal and each of those angles is 90 degrees.
Formula to calculate area of a rectangle:
![How To Calculate Area of a Rectangle](https://www.learntocalculate.com/wp-content/uploads/2020/03/How-to-calculate-area-of-a-rectangle..png)
Example:
Calculate the area of the rectangle below.
![How To Calculate Area of a Rectangle](https://www.learntocalculate.com/wp-content/uploads/2020/03/How-To-Calculate-Area-of-a-Rectangle-2.png)
Therefore, the area of the rectangle is 24 cm² .