Straightedge and compass construction - Wikipedia
Angle trisection - Wikipedia
Angle Trisection -- from Wolfram MathWorld
3733 PDFs Review articles in EUCLIDEAN GEOMETRY
A geometric proof of the impossibility of angle trisection by straightedge and compass
Use a ruler, protractor, and compass to construct, if possible, a triangle with the stated properties. If such a triangle cannot be drawn, explain why. Decide if there can be two or
How to make a 34 degree angle - Quora
Straightedge and compass construction - Wikipedia
Constructible Polygon -- from Wolfram MathWorld
Angle trisection - Wikipedia