Angle trisection using compass and tape measure – GeoGebra

The Basics – GeoGebra

Puzzle: Patty Paper Trisection – Denise Gaskins' Let's Play Math

Trisection of angles to form an equilateral triangle – GeoGebra

trisection of angle – GeoGebra

trisection of a segment – GeoGebra

Trisection of angles to form an equilateral triangle – GeoGebra

PDF) The Angle Trisection Solution (A Compass-Straightedge (Ruler) Construction)

Exploring Parts of an Angle – GeoGebra

Angle trisection

The Basics – GeoGebra

Angle trisection? – GeoGebra

Maths in a minute: Trisecting the angle