How do you convert circumference into square inches?

Answer 1

You can not CONVERT. Circumference is a measure of length and square inches is a measure of Area. However, if you know the circumference of a circle, you can FIND the area.

for example:

Circumference = pi x (2 x radius)

solve for the radius = C/2pi,

then Area = pi x r2 .

You can do the same 'type' of calculation for Polygons, BUT you must know the lengths of the individual sides, not just the total circumference.