Answer:
The answer is 900cm²
Step-by-step explanation:
To find the area we must first find the length of one side of the square since a square has all sides equal.
Perimeter of a square = 4l
where l is the length of one side
From the question
Perimeter = 120cm
Substitute the value into the above formula to find the length
That's
120 = 4l
Divide both sides by 4
l = 30cm
We can now find the area using the formula
Area = l²
Area of the square = 30²
We have the final answer as
Area = 900cm²
Hope this helps you
