Similar to 正弦定理

Apollonius's theorem

Law of tangents

Law of cosines

Law of cotangents

Four-dimensional space

Five-dimensional space

Six-dimensional space

E8 (mathematics)

Five lemma

Arzelà–Ascoli theorem

Apollonius point

Angle bisector theorem

Stewart's theorem

Ceva's theorem

Newton's theorem (quadrilateral)

Pappus's area theorem

Lune of Hippocrates

Menelaus's theorem

Routh's theorem

Square root of 3

Square root of 5

BPP (complexity)

Homotopical connectivity

Z-test

Ω-logic

Richard Askey

1 + 1 + 1 + 1 + ⋯