Assuming you mean the room is 15 feet by 9 feet - 135 square feet.
7.25 square metres.
165 square feet
0
288 square feet.
250 square foot
60 square feet
13.93 square meters.
108 square feet
7.25 square metres.
165 square feet
0
The room is 144 square feet.
A room measuring 20' x 20' = 400 square feet
12' x 12' = 144 square feet.
144 square feet.
About 4.459 square meters.
There are 66 square feet.