Answer:
[tex]w =\frac{A}{l}[/tex].
Step-by-step explanation:
The formula for finding the area of a rectangle is A = l.w, where A is the area, l is the length and w is the width of the rectangle.
This formula is used to find area when l and w are known.
Now, if area A and length l are known the width w will be given by the formula [tex]w =\frac{A}{l}[/tex].
Therefore, width = area by length. (Answer)