30 Dec
2015
30 Dec
'15
11:52 p.m.
On Dec 30, 2015, at 8:56 PM, James Propp <jamespropp@gmail.com> wrote:
The central angle theorem (in one formulation) tells us that if C is a circle containing the point p and C' is a circle centered at p, then projection from C to C' through p halves all angles.
For some reason I'm having trouble imagining this projection properly. Is this "central angle theorem" the same as the theorem that says: An angle inscribed in a circle subtends a central angle that's twice its size ? —Dan