Answer
(-6,8), (8,-5): 19.104973174543
(4,6), (9,8): 5.3851648071345
(2,5), (-6,3): 11.313708498985
(2, -7), (-3,6): 13.928388277184
(9,4), (9,8): 18.439088914586
In ascending order: 5.3851648, 11.31370849, 13.92838827, 18.43908891, 19.10497317.
Hope this is right :)
Explanation: