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## What is a square?

A square is a plane figure with four equal straight sides and four right angles. The algorithm behind this square calculator applies the formulas given below that all use the square’s side length:

- Square Perimeter Formula = Side length * 4.
- Square Area Formula = Side length^2.
- Square Diagonal Formula = (Square root of 2) * Side length.

## Example of a result

Assuming we have a square with a side of 2 feet we will obtain the following results:

Perimeter = 8

Area = 4

Diagonal = 2.83

09 Apr, 2015