Missing data - you also need the height. If the room is the shape of a rectangular block (this is fairly common for rooms), and all dimensions are in feet, just multiply length x width x height.
54 square feet. Multiply length by width - the result is the area in square feet.
If you multiply 25 by 7, the result will be the number of square feet.
56 square feet.
256 square feet
352 square feet.
216 square feet
140 square feet
1690 square feet
23,142 square feet.
This room has an area of 11.71 (11.705783) square meters.
1,120 square feet.
There are: 24*24 = 576 square feet
14 × 5 = 70 square feet.
36 square yards.
2
99ft2