4
36 square feet on the floor. 36 square feet on the ceiling. ( 6 x height of the room) on each wall. Total area inside the room is [ 24 times (3 + height of the room) ] square feet.
108 square feet
165 square feet
130 square feet
Length mutiplied by width. For example if you a room that is 12 foot by 10 foot then the room is 120 square feet.
144 square feet.
There are 66 square feet.
288 square feet.
A room measuring 20' x 20' = 400 square feet
The room is 144 square feet.
There are 270 square feet in a 15'x18' room.
There is 121 square feet in a 11'x11' room.