Category:三角形に関する定理

Law of cosines

Law of sines

L'Huilier's theorem

Ceva's theorem

Menelaus's theorem

Law of tangents

Apollonius's theorem

Bottema's theorem

Angle bisector theorem

Pappus's area theorem

Droz-Farny line theorem

Thomsen's theorem

Carnot's theorem (conics)

Carnot's theorem (perpendiculars)

Maxwell's theorem (geometry)

Jacobi's theorem (geometry)

Exterior angle theorem

Feuerbach hyperbola

Stewart's theorem

Desargues's theorem

Heron's formula

Law of cotangents

Napoleon's theorem

Midpoint theorem (triangle)

Routh's theorem

Morley's trisector theorem