Answer:
The formula to find the perimeter of a square is given below:
Perimeter of Square (P) = 4 × Side
Explanation:
Derivation of Perimeter of Square Formula
The perimeter of the square is defined as the total length of the boundary of a square. We need to add all the sides of square to find its perimeter. By the formula of perimeter of polygon, we know;
Perimeter = sum of all sides
Perimeter of square = Sum of the lengths of 4 sides
= side + side + side + side
= 4 × side
Therefore, the perimeter of Square = 4s units
Where, s = Length of a side of the square
How to Find Perimeter of Square?
We have already learned to calculate the perimeter of the square using the formula,
Perimeter = 4 × side
But if the length of the side of square is not given, then we can calculate the perimeter of square, if two we are given with either of two details:
Length of diagonal of square
Area of square
Let us figure out, how we can find the perimeter using diagonal and using area.