Yes! All six sides of a hexagon are congruent. It doesn't have to have all sides congruent. A hexagon only needs six sides to be a hexagon.
It can have two congruent sides but does not have to.
a regular hexagon... it has to be regular to have the 6 sides congruent.
Is an irregular hexagon.
Every hexagon has six sides. That's what the "hex" in hexagon means. Every polygon comes in two flavors and the hexagon can be either one of them ... 'regular' or 'irregular'. If the hexagon is a regular one, then all six of its sides are congruent. If the hexagon is an irregular one, then 2, 3, 4, 5, or none of its sides may be congruent.
square. hexagon nonagon octagon etc.
If the hexagon's sides and angles are congruent, then it a regular hexagon.
Possibly but not necessarily.
A regular hexagon.