[masraum]

Originally Posted by Crowbob

I used the number you came up with (418.95”) as the radius. Then I went on the interwebs and found a calculator and plugged in 418.95 for r (radius), and 80.25” for c (chord) and it told me the l (length) of s (segment) is 80.3732”.

I thought that didn’t look right. However, if you consider the circumference of a circle with a radius of 418.95” is 2632.34” or about 219.4 feet, it makes sense.

Ah got it. Yeah, and that's good, because working back came up with basically the same measurement.