Question: 45 feet is how many square feet?
Answer: 45 square feet covers a floor space that is 9 feet by 5 feet. It also covers rectangular spaces of 10 feet by 4.5 feet, 20 feet by 2.25 feet and 8 feet by 5.625 feet. There are also 45 square feet in a circle with a radius of 3.8 feet. A right-angle triangle of 9 feet by 10 feet also has an area of 45 square feet.