14 Mar
2012
14 Mar
'12
11:16 a.m.
On Wed, Mar 14, 2012 at 10:53 AM, Henry Baker <hbaker1@pipeline.com> wrote:
I'll see what I can do. On a long bicycle ride yesterday, I began to have doubts about 5; perhaps the number needs to be divisible by 2 or 4.
I don't have a proof yet, but I think that it might be true that if an arc of radius r1 lies between arcs of radius r2 and r3, then either r1 is less than both of r2 and r3, or greater than both. This would imply that the total number of arcs must be even. Andy