No. The circumference of a circle is the length around the circle, much like the perimeter of a square.
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The ratio of a circle's circumference to its area is called the reciprocal of half the radius. The ratio of the circumference to its radius is called two times pi.
The circumference of a circle is the distance arround the edge of the circle. The area of a circle is how big the inside of the circle is.
The area of a circle that has a circumference of 16pi is: 201.1 units2
If the area of a circle is 28.26 the circumference is: 18.84 units.
The area of a circle, if its circumference is 20π, is: 314.16 square units.