Sequence of polygons 
Hexagon bisection (II)
Instructions
Click on the blue dot and drag it to get several hexagons (of red color) that give rise, by bisection, to the same hexagon (of black color). You can also change the obtained hexagon by dragging its vertices (red dots). Does it have any particular characteristic, so that it can be obtained by bisection, or can it be an arbitrary hexagon?
