Sue is wrapping books to give as gifts book a has a length of 6.5 inches, a width of 1 inch, and a height of 8.5 inches. Book B has a length of 5.5 inches, width of 2 inches, and a height of 8 inches. Based on surface areas, which book will require less rack and paper? One point.
To calculate the surface area of each book, we need to find the area of each face.
Book A:
- Length face: 6.5 inches x 8.5 inches = 55.25 square inches
- Width face: 1 inch x 8.5 inches = 8.5 square inches
- Height face: 6.5 inches x 1 inch = 6.5 square inches
Total surface area of Book A: 55.25 + 8.5 + 6.5 = 70.25 square inches
Book B:
- Length face: 5.5 inches x 8 inches = 44 square inches
- Width face: 2 inches x 8 inches = 16 square inches
- Height face: 5.5 inches x 2 inches = 11 square inches
Total surface area of Book B: 44 + 16 + 11 = 71 square inches
Therefore, Book A will require less wrapping paper and rack.