How To Figure Out Square Feet?

Area is 220' long by 9' wide

I have a room that is 132inches by309 inches what is the square feet of this

The square foot basically is an Imperial unit of an area, used on a large scale in the United States, United Kingdom and other parts of the world. It is illustrated as the area of a square having side of 1 foot each in total length.    There are no collectively agreed representations but following are applied square feet, square foot, square ft, feet/-2, foot/-2, ft/-2. Imperial units are a group of English units, initially defined in the Weights and Measures Act of 1824, afterwards refined and abridged.    The distinction amid this regal system and the U.S. Customary units or older British/English unit/system and newer additions is regularly not drawn accurately. Even though the majority of the units are defined in more than one classification, where as a few subsidiary units were applied to a much greater extent.

25ft l by 12.5ft w

Length in feet multiplied by width in feet.

1400x625x245x208x1155x625

What is the square feet of a area 55 ft x 97 ft x 188ft x 140ft x 146ft ?

What is the square feet of an area of 151.15ft x 43.00ft x 100.80ft x 49.75ft x 80.67ft?

What is the square feet in a measurement in meters as follows:
145.99 meters x 12.40 meters x112.30 meters x 10.50 meters