Formula Index

# Perimeter of a square & Calculator

The perimeter of a square can be calculated using one of the following formula: if you know the length of a side.

## Formula Knowing the Side

If you know the length of one of the sides of the square, you can calculate its perimeter using the following formula:

$$"perimeter" = S * 4$$

Square Side Length

Perimeter result

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### Where:

$$4 = "number of sides in a square"$$
$$S = "side"$$

## Square Definition

It is a geometric figure with 4 sides, all the sides have equal length. All squares have equal angles.

A square can have vitually infinite posibles shapes, Despite this all have 4 sides and all this angles are 90º.

## Perimeter Definition

A perimeter is defined by the outer path of a shape. The shape is always in 2 dimensions. The perimeter is the total length of the exterior path. Another way of looking at this is to think of it as the boundary length of a shape.

In the case of a circle, the perimeter is called a circumference.

Perimeter has a Greek origin, "peri" means "around", and "meter" means "measure". So perimeter means "measure around".

## Formula Definition

It is a representation of a rule or a general principle using letters. (Algebra, A. Baldor)
When describing formulas in plural, it is also valid to say "formulae".

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