is it possible to find the radius of a circle, only having the lengths of two parallel chords?
Context: The problems actually comes from a 3D one, "find the radius of a sphere having the diameter of two (parallel) inscribed discs". It should be possible since there is only one circle/sphere with 2 parallel chords/discs inside right?
Thank you in advance for any insight.
You would need to know the distance between the $2$ chords since you can have an infinite number of parallel chords within a circle.
If you do know the distance, you can follow this link to see how you can compute the radius.