If it is nine feet by nine feet, then it is 81 square feet.
150 x 100 = 15000 sq feet assuming the space is rectangular.
25000
4 feet times 3 feet equals 12 square feet.
11000 sq ft living space
The International Space Station orbits Earth at an average altitude of about 250 miles (400 kilometers). This means it is approximately 1.3 million feet away from the surface of the Earth.
The space needle is 499 feet tall.
275 square feet
A linear foot has no width, so no matter how many you have of them, you will never cover a 32 x 30 space.
12 cubic feet of space = 89.766 gallons of space (rounded)
There is about 1,267,200,000 feet.
earth
If it is nine feet by nine feet, then it is 81 square feet.
It all depends on the actual size of the space. Square footage is measured by multiplying the length of the space by the width. IE: a 6x6 space is 36sq feet.
Gravity, when we are on or near the Earth's surface, keeps our feet firmly on the ground. Out into space, there is so little gravity than we can float.
Believe it or not, earthworms have zero feet.
None, they're all on the earth.