Category:三角形に関する定理

Angle bisector theorem

Stewart's theorem

Midpoint theorem (triangle)

Law of sines

Law of cotangents

Bottema's 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)

Feuerbach hyperbola

Apollonius's theorem

Menelaus's theorem

Napoleon's theorem

Exterior angle theorem

Law of tangents

Desargues's theorem

Ceva's theorem

Routh's theorem

Law of cosines

Morley's trisector theorem

Heron's formula