Example image of eyePlorer eyePlorer map for 'Angle trisection': Compass and straightedge constructions Greek mathematics Angle Straightedge Proof of impossibility Cube root Tool Compass (drafting) Line (geometry) Parallel (geometry) Square (geometry) Cubic function List of trigonometric identities Rational number Constructible number Polynomial Degree (angle) Equilateral triangle Radian Minimal polynomial (field theory) Rational root theorem Irreducible polynomial Field extension If and only if Theorem Origami Huzita–Hatori axioms Mathematics of paper folding Trisectrix Archimedes Neusis construction Pons asinorum Triangle Radius Hypothesis Logical consequence Mathematical proof Q.E.D. Archimedean spiral Blaise Pascal Conchoid (mathematics) Limaçon Nicomedes (mathematician) Limaçon trisectrix On Spirals Al-Saghani Morley's trisector theorem Tomahawk (geometric shape) Constructible polygon Al-Sijzi