To determine the amount of wrapping paper needed for a rectangular box, Ryan finds the surface area of the box. How much wrapping paper is needed if the box measures 9 in. by 4 in. by 6 in?
1. 216 in2 of wrapping paper
2. 114 in2 of wrapping paper
3. 228 in2 of wrapping paper
4. 180 in2 of wrapping paper