Hello math experts, thanks for giving me the opportunity to post
here. My maths education is limited to a 16 yr old's so your
help is much appreciated. In my attachment, I have measured A, B
and C in 112 different subjects. Using these measurements, I
hope to come up with an approximate index that can be used to
compare between subjects. To approximate the arc length, I am
going to average A and B. C will be the chord length of that
curve. My question is: how can I measure the central angle of
that curve given these values? It does not have to be exact,
just an estimation that can be used to subjectively describe if
one subject is more curved than the other. In fact, it doesn't
even have to be the central angle. Just a discrete value of some
sort. Even something as simple as a ratio? Please help! Thank
you.