No, that's not necessarily the case

来源: 2010-07-22 05:16:37 [博客] [旧帖] [给我悄悄话] 本文已被阅读:

The only part of the diagram that is relevant to this discussion is the part enclosed by lines PA and PB and minor arc AB. Drawing any number of chords that collectively encompass all of minor arc AB results in reflex angles exclusively.