We have an empty cardboard box of dimensions breadth = 4 m, length = 5 m, and height = 6 m. An ant and a fly are sitting at one of the 8 corners inside the box and wish to go for a tiny cube of sugar at the corner diagonally across (the farthest point in the box for them). (a) How do they determine which way to move/fly? (b) What is the minimum distance the ant must travel before it gets to the food? (c) How about the fly?