Answer:
1376 square centimeters
Step-by-step explanation:
1. Find the total area of the original sheet of paper. It is shaped like a rectangle, and to find the area of a rectangle you multiply the length and the width.
2. 40 x 36 = 1440 sq. cm. This is the area of the unmodified sheet of paper.
3. Now, I'm assuming when you say 4 cm you are referring to each side length of the square. To find the area of a square you square (raise to the power of two) the side length. 4 squared is equal to 16. Each square is 16 square centimeters in area.
4. There are four corners on a sheet of paper. Thus, four 16 sq cm squares will be removed. 16 x 4 = 64.
5. Subtract this value from the total area to find the area of the remaining sheet. 1440-64=1376 sq. cm. is your answer.
I hope you found this helpful. Have a nice day.
