A rectangle has a length of centimeters and a width of centimeters. The equation represents this situation. Which of the following is the best interpretation of 40 in this context?
The difference, in centimeters, between the length and the width.
The area, in square centimeters, of the rectangle.
The sum of the lengths, in centimeters, of the four sides of the rectangle.
The length, in centimeters, of one of the sides of the rectangle.
