The formula for calculating the area of a square is given as;
Area of a square = Length × Length
A = L²
Note that all the length of the sides of the square are equal.
Given the area of the square closet to be 16ft², to find the length of the closet, we will substitute the area given into the formula for calculating the area of square as given above to have;
16ft² = L²
L = √16ft²
L = ±4ft
Since the length of the square cannot be negative, therefore the length of one side of the square closet is 4ft.
