Radius of circle: square root of (324/pi) = 10.1554125 cm
Circumference of circle: 2*pi*10.1554125 = 63.80833861 or 64 cm to the nearest integer
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The area of a circle, if its circumference is 20π, is: 314.16 square units.
The area of a circle with a 22-unit circumference is 38.515 square units.
The area of a circle when the circumference is 10 inches is: 7.96 square inches.
If the circumference of a circle is 16pi feet, the area is: about 201.1 square feet.
The area of a circle with a circumference of 37.68 units is: 113 square units.