490.87 square feet
25 pi sq ft
No, area of a circle is pi x radius x radius Radius is half the diameter. So the diameter of something giving 11.5 square feet as an area, must be much much smaller.
The area of a circle = (pi) x radius squared radius = 1/2 diameter 3.14 x 5 feet squared 3.14 x 25 = 78.5 square feet
Area = (pi) R2 = (pi) (1/2 diameter)2 = 25 pi = 78.54square feet (rounded)
The area of a circle is PI times the radius of the circle squared. The radius of a one foot diameter circle it 1/2 or .5 feet. .5 squared is .25 PI is 3.1416 3.1416 times .25 = .79 square feet So, there are about .8 square feet in a 1 foot diameter circle.
The area of the circle is 490.87 cm2
If a circle is 50 feet wide, that means its diameter is 50 feet. The radius of a circle is half the diameter, therefore the answer is 25 feet.
A circle with a diameter of 25 mm has an area of 490.9 square mm.
490.9 square inches for a 25-inch diameter circle.