If we are given the circumference of a circle to be 2(PI)r, then by simple calculus the area will be (PI)r^2. This comment is submitted by Peter L. Griffiths.

## Circle Area

If we are given the circumference of a circle to be 2(PI)r, then by simple calculus the area will be (PI)r^2. This comment is submitted by Peter L. Griffiths.