A circle with a radius of 30 feet has an area of 2,827.43 square feet.
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A circle with a radius of 4.3 feet has an area of 58.09 square feet.
Area of circle = PI * radius^2, so PI * 6^2 = 113.09733553 square feet.
The area is 441 times pi.
Area of a circle = pi*radius2 Area = 314.159 square feet to 3 decimal places.
The area of a circle is pi*(radius)^2. If the 8 ft is the diameter, the area is pi*(4 ft)^2~=50.27 ft^2 (ft^2 is square feet)