Recent content by dubi

  1. D

    Prove that it is possible to trisect 72 degrees

    Some info on trisection The ever-dubious wikipedia has some info on trisection -- full disclaimer, I wrote it -- at < http://en.wikipedia.org/wiki/Angle_trisection >. The book by Ian Stewart I own, and is available in updated editions. Another reference that trisects 72 degrees (big .pdf...