Q: What is one relationship between lines and circles? Explain at least one real-world application of the relationship.

A: Assuming that you have the radius of the circle: r
The straight line distance between 2 pts on the circle : c
The curved distance between the same two pts : s
You can compute s from r and c using:
s = r 2 arcsin (c / 2r )
You can compute c from r [ and s using:
c = 2 r sin(s / 2 r)
Note: in this case the trig functions are operating on angles measured in radians.
see also : ]

Expert answered|jeffreymcmillan|Points 100|

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