Question 802932
The only way to solve this problem is if the hexagon is a regular hexagon.  Then all the sides are the same length.  If it's not regular, knowing the length of one side isn't enough to find the perimeter.<P>
Assuming it is regular:<P>
The hexagon as 6 sides.  The perimeter is 6*s = 6(9y+1) = (54y+6) km