What is square?
A square is a kind of rectangle in which all sides of the square are equal. In the square, total angles are the same and equal 90º.
Perimeter of a square
The perimeter of a square is the entire distance of each side of the square. Therefore we can determine the perimeter of a square by adding all its 4 sides.
Perimeter = Addition of the lengths of four sides
= a + a + a + a
= 4 a units
The formula for Perimeter of a Square
The perimeter of Square (P) = 4 × a (length of any one side).