Write a formula by which you can find the side of a rectangle if the area

Write a formula by which you can find the side of a rectangle if the area of the rectangle is 120 m² and the length of the other side is equal to x m.

To solve this problem, we write down the formula for the area of a rectangle:
S = a × b,
where a and b are the sides of the rectangle.
Let us express side a from the formula for the area:
a = S: b.
In the problem statement, we are given the area of a rectangle, it is equal to 120 m², and the length of the other side, it is equal to x m.
Let’s write a formula for finding the side of a rectangle:
a = 120: x
Answer: The formula for finding the side of a rectangle is as follows:
a = 120: x.