Answer: The perimeter of the square is 72 units.
Step-by-step explanation:
We are given that : The area of a square = 324 square units.
Formula : Area of square = (side)²
Therefore , Side of Square = √Area
i.e. Side of the given square =[tex]\sqrt{324}[/tex]
i.e. Side of the given square [tex]=\sqrt{18^2}=18\ units[/tex]
Formula : Perimeter of square = 4(Side)
So the perimeter of given square = 4(18)= 72 units
Therefore, the perimeter of the square is 72 units.
