What Is a Square?
What Is a Square?
A square is a four sided shape with four equal sides and four right angles.
Dictionary Definition
The Oxford English Dictionary defines a rectangle as "a plane rectilinear and rectangular figure with four equal sides."
Properties of Squares

All sides of a square are of equal length.

All angles in a square are right angles.

Opposite sides of a square are parallel.

All angles of a square add up to 360°.

The diagonals of a square bisect each other at right angles. The diagonals cross each other halfway along their lengths and are perpendicular to each other.
The Perimeter of a Square
The perimeter of a square is given by the formula:
In this formula, a is the length of the side of the square.
The Area of a Square
The area of a square is given by the formula:
In this formula, a is the length of the side of the square.