42. A rectangular room is 13 feet long, 10 feet wide, and 9 feet high. Not accounting for doors and windows, what is the surface area, in square feet, of the 4 walls, ceiling, and floor of the room?

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

It can be seen from the title that the ceiling area is 13×10=130square feet, the total area of ​​the mast surface is (13+10)×9×2=414 square feet, the floor area is 130 square feet, and the total area is 130×2+414= 674 square feet so choose J