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

*s*2, 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*