Does it matter which dimensions you select for the length and the width when you find the area of a rectangle? Explain. I need this by 1 : 36

To find the area you need both the length and width

A = lw

Practically it doesn't matter which one you call length or width as long as both of them used in the calculation. The product of them doesn't change.

The area of a rectangle is the product of the length and the width of the rectangle.

The dimensions chosen for length and width of a rectangle must be the lengths of two adjacent sides. The area is the product of the two dimensions. It does not make a difference which one you call length and which one you call width since length * width = width * length because of the commutative property of multiplication.,