Answer:
The quantity of cardboard that is needed to make the top of the box is:
Step-by-step explanation:
When the exercise asks you about the "inches squared," it's asking you about the area, the area of a rectangle (a rectangle because a cardboard box regularly is rectangular) is:
- Area of a rectangle = length * width
Now, you must replace the length and the width by the values in the exercise (doesn't matter what is width or length, remember the commutative property of the multiply):
- Area of a rectangle = 9 in * 4 in
- Area of a rectangle = 36 in^2 or 36 inches squared.
