Abcdef is a regular hexagon with centre
- abcdef is a regular hexagon with centre o of a and fb b
- abcdef is a regular hexagon with centre o if the area of triangle
- abcdef is a regular hexagon with centre o oau003da obu003db
- abcdef is a regular hexagon with centre o the value of ab+ac+ad+ae+af
- abcdef is a regular hexagon with centre at the origin such that
- abcdef is a regular hexagon with centre o
