A circle with a radius of 63 cm has an area of 12,468.98 square cm.
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Area of a circle equals pi r2 Therefore the radius of a circle equals the square root of (area divided by pi).
Yes Area of a circle = pi*radius2
Yes
Area of a circle = pi*radius2 Area = 15.90431281 square units
Area of a circle equals pi (~3.14) multiplied by the radius squared. So to find the area of that circle your equation is (3.14)(3)^2 which equals approximately 27.