is a parallelogram with
4 congruent sides and
4 right angles.
A square is a particular case of a rectangle and a rhombus simultaneously. So, it shows both the properties of rhombus and rectangle simultaneously.
Square can be differentiated from a rectangle and rhombus due to following properties:
1. Unlike rectangle square needs to have all its sides equal.
2. Unlike rhombus square needs to have all angles equal to 90 degree.
Area of a square
is the side-length of a square, the area of the square is: