5) g/c dist. Btw psn a (59'34.1'n 008'08.4'e) and b (30'25.9'n 171'051.6'w)
is
008 deg 08 min 24 sec and 171 deg 51 min 36 sec are meridian - antimeridian
A/c will fly from A to B via North pole
59 deg 34 min 06 sec + 30 deg 25 min 54 sec = 90 deg
dist = 90 x 60 = 5400 nm