That should work just fine. But what about the radius? Let’s assume there is a known center of the imperfect circle. In that case, I can calculate the radius as the average distance from the ...

Look at the sector of the circle shown below. To calculate the length of the arc ... c=\pi d=3.14\times 6\) (Remember the diameter is double the radius.) \(=18.84cm\) Arc length = \(\frac{2}{ ...