In Geometry, Square refers to a plane figure with four equal sides and four equal right angles. It is a regular quadrilateral. A square with vertices ABCD would be denoted ABCD.

The Square is also both a Rhombus (Equal Sides) and a Rectangle (Equal Angles) and therefore consists of properties which are present in both these shapes. In other words,

Square = Rectangle (four equal angles) + Rhombus (four equal sides)

Bisection of a square by a diagonal results in two right triangles.

If the length of the side of a square is s, then the area of the square is s2, or “s squared.” From this relation is derived the algebraic use of the term square, which denotes the product that results from multiplying any algebraic expression by itself.

Formula for Calculating Area of a Square:



The area of a square is the product of the length of its sides.

Perimeter of a Square is P = 4s