The radius (in feet) squared times PI (3.14159...)
Feet can't be converted to square feet. Feet measure length, while square feet measure area.
A 45-foot diameter circle has an area of 1,590.4 square feet.
There is no such thing as a "square circle". If you mean "8 square feet", that is already the area.
Area of the circle in square feet = pi*radius2
Measure its radius in feet or derive it from the diameter or circumference. A circle with radius r feet has an area of pi*r^2 square feet.
assuming you used the formula pi*r^2 to find the area of the circle you already have the answer in square feet. Feet cannot be converted into square feet. feet measure distance which is one dimension while square feet measure area which is two dimensions, the two are not interchangable.
The radius (in feet) squared times PI (3.14159...)
Feet can't be converted to square feet. Feet measure length, while square feet measure area.
It is a measure of the area of some - unspecified shape. It could refer to the area of a circle with radius 5.64 feet.
A circle with a diameter of 77 feet will cover 4657 square feet.
There are two ways to answer your question. If you mean the circle is 16 feet wide (diameter), then the square footage is 201.06 square feet. However, if you mean the circle is 16 feet around (circumference), the square footage will be 20.372 square feet.
A circle with a 60-foot circumference has an area of 286.48 square feet.
A circle with a diameter of 18 feet has an area of 254.5 square feet.
A circle with a diameter of 24 feet has an area of 452 square feet.
A 45-foot diameter circle has an area of 1,590.4 square feet.
There is no such thing as a "square circle". If you mean "8 square feet", that is already the area.