I would just put 1 bridge across the corner and the other from the middle of that bridge the edge of the island. Like so:
This will not work as the maximum length you can achieve with this approach is 9.5 + 4.25 = 13.75
As illustrated below in the picture.
Since angle and A and B are same, the sides AC and BC has to be same.
AC is half of max length of bridge, which is 9.5/2 = 4.25.
Edited by holla, 18 March 2008 - 01:40 PM.