Assuming the room measures 12 feet by 7 feet - and there is absolutely no reason to make that assumption as against 12 cubits x 7 cubits - the area is 12*7 = 84 square feet.
270 Square Feet.
There is no way to convert linear feet to square feet because the unit 'linear feet' measures length but the unit 'square feet' measures area.
208 square feet.
143.3 square feet.
139.75 square feet
You have to multiply the two dimensions to get the area. In this case the answer will be 84 square feet. That would be 9.33 square yards.
200 square feet.
270 Square Feet.
182 square feet.
201.6 square feet.
200 square feet
56 SQUARE FEET
That is 64 square feet !
There is no way to convert linear feet to square feet because the unit 'linear feet' measures length but the unit 'square feet' measures area.
144 square feet.
126 square feet
31.4167 square feet.