Similar to 六角形

Circles of Apollonius

Inscribed circle

1 + 1 + 1 + 1 + ⋯

1/2 + 1/4 + 1/8 + 1/16 + ⋯

1/2 − 1/4 + 1/8 − 1/16 + ⋯

1/4 + 1/16 + 1/64 + 1/256 + ⋯

Square root of 7

Hundredth

Abc conjecture

Messenger of Mathematics

Homotopical connectivity

P-adic Teichmüller theory

P-adic quantum mechanics

P versus NP problem

Abel–Ruffini theorem

Astroid

Annulus (mathematics)

Affine space

Archimedean property

Circumcircle

Heptagon

Face (geometry)

Tetrahedron