A hexagon is a convex rectilinear figure with 6 sides and 6 vertices.
A hexagon is called equilateral, if all of its sides are congruent. A hexagon is called equiangular, if all of its angles are congruent.
The following figure shows an equilateral and equiangular hexagon (above) as well as a general hexagon (below).
Corollaries: 1 2
Problems: 3
Proofs: 4 5 6 7 8 9
Propositions: 10 11 12
Solutions: 13