If both dimensions are in feet then 8.5 times 6 = 51 square feet
108 square feet
165 square feet
360 square feet.
144 square feet.
There are 66 square feet.
288 square feet.
There is 121 square feet in a 11'x11' room.
There are 270 square feet in a 15'x18' room.
234 square feet.
A room measuring 20' x 20' = 400 square feet
The room is 144 square feet.
60 square feet