The area of a rectangle is 54 cm2, one side is 6 cm. What is the other side.

This geometric problem is simple, therefore, in order to solve it and get an answer, you need to perform only one action.
We know the area of the rectangle and its side. To find the second side, you need to remember the formula for the area of a rectangle:
S = a * b;
Now we derive from this formula a new formula for finding the unknown side of a rectangle:
b = S \ a;
Let’s find the unknown side:
b = 54/6 = 9 cm – the second side of the rectangle.
Answer: 9 centimeters.