Module 4: Area
SC 7. 1 ft = 12 in
The surface area of the carton is 37.5 ft2.
SC 8. 
The surface area of the container is 1664 ft2.
SC 9.
There are 2 walls 12 ft long and 8 ft high.
There are 2 walls 9 ft long and 8 ft high.
The ceiling is 12 ft by 9 ft.
Jim’s estimate is 444 ft2.
SC 10.
The surface area of the tetrahedron is 91.64 cm2.