"Circ./Perim." text

The illustration on the left side shows that the perimeter of the square equals the circumference of the inner circle (18.84").

When the square illustration to that circumference is moved up, it's corners closely approximate to the radius of the outer circle. In certain fashion this closely resembles Davinci's drawing of 'Vitruvian Man' during the Renaissance period.

* Note that only the circumference of the inner circle is squared, and not its area.

* Also note that the circumference to any circle cannot be truly exacted worked with pi--, pi being a constant. The base ratio of 3.14 was used in these illustrations, which resulted in the inner/outer circles circumference being 18.84"/ 20.724" respectively.