The formula for the area of a rectangle is l * w = a. So let's plug the values that we know in: 38w = 577.6. We can solve this equation by following these steps: Divide each side by 38 to isolate the variable. 557.6 divided by 38 is 15.2. We can check this by multiplying 15.2 by 38. So the width is 15.2
