Journal of the Mathematics Council of the Alberta Teachers’ Association
Volume 38 Issue 2, May 2001
55
Unsolvable Problems: Trisection of an Angle
Klaus Puhlmann
We have all learned in school how easy it is to bisect any angle with a straightedge and compass. However, trisection using a straightedge and compass is impossible for some angles, as P. L. Wantzel proved in 1847.
