The area of the floor is 256 square feet. The area of the ceiling is also 256 square feet.
In order to calculate the area of the walls, we'd also need to know the height of the
ceiling above the floor.
300 square feet.
162 square feet.
240 square feet
There are 270 square feet in a 15'x18' room.
192 square feet.
400 square feet.
324 square feet.
525 square feet.
120 square feet.
252 square feet.
130 square feet.
140 square feet.
352 square feet.
770 square feet.
300 square feet.
162 square feet.
240 square feet