Question

How to find length of the flower bed, divide the area by the width

Answer 1

Area = length x width

with a little algebra we can reorganize the equation and solve for length...

A = L x W
A/W = L

So the statement divide the area by the width is TRUE.

Answer 2

As we know,
Area = length × width

Divide width on both sides

Area/width = length × width/ width

Flip the equation
Length = Area/width