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when toggle format what by license comment
Oct 9 '21 at 20:39 comment added Kevin Corollary: The unlabeled green angle (i.e. the one whose measure is π - θ) is exactly half the unlabeled center reflex angle (i.e. the one whose measure is 2π - 2θ). Therefore, you technically don't need the "above the chord" condition at all. You just need to clarify which of the two central angles you mean (i.e. when the angle is inscribed on the minor arc, you use the reflex angle, when it's inscribed on the major arc, you use the non-reflex angle).
Oct 4 '21 at 11:15 comment added Jan Thank you for your help.
Oct 4 '21 at 10:47 history answered Joseph O'Rourke CC BY-SA 4.0