How does the area of a rectangle relate to the lengths of each side?

The area of a rectangle is related to the lengths of each side as the product of l*w (length and width).

The area of a rectangle is given by:

Where:

l: is the length

w: is the width

From the above equation, we can see that the area is proportional to the length and the width of the rectangle, that is to say, it depends on the sides of the rectangle.  

Therefore, the area of a rectangle is related to the product of its sides, l*w.  

You can learn more about the calculation of the area of a rectangle here: link

I hope it helps you!          

The area of a rectangle is directly proportional to each of it's dimensions ... length and width.