Henry is using cardboard to build a box in the shape of a rectangular prism. A net of the box is shown.
10 ft
4 ft
10 ft.__
6 ft!
4 ft
4 fti
1
What is the surface area of the box?
A. 84 square feet
B. 216 square feet
O c. 240 square feet
D. 248 square feet
E. 280 square feet