Area of a circle = (pi) (radius)2
Radius = 1/2 of diameter
Area = (pi) (10)2 = 100 pi = 314.16 square feet (rounded)
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The square foot area of a 41-foot diameter circle is: 1,320 square feet.
The area of a circle with a 7-foot diameter is: 38.48 square feet.
A 45-foot diameter circle has an area of 1,590.4 square feet.
Area of a circle in square feet = pi*radius2
Area of a circle in square feet = pi*radius2