400 square feet.
525 square feet.
252 square feet.
240 square feet
300 square feet.
162 square feet.
120 square feet.
16' x 15' = 240 square feet.
A simple rectangular room 20 feet by 18 feet has 360 square feet.
A room that is 12 feet by 13 feet is 156 square feet in area
A 10x14 room has an area of 140 square feet (10 feet x 14 feet = 140 square feet).
The area of a 12x10 room is 120 square feet.