A pilot flies with a constant speed of 120km/h relative to the air, and makes instantaneous turns, when necessary. He follows a perfectly square path on the ground, using north-south and east-west roads as a guide for each of the 60km sides. On a daywhen there is a steady 60km/h wind blwoing diagonally across the square(northeast), how long does the trip take? I drew a picture and found the distance of the diagonal, from there i am just clueless on how to determine time of the trip. any suggestions?