A spider and a fly are in the same room. The spider is hungry and the fly is asleep. The room is 15m long, 6m wide and 6m high. The spider is on an end wall, 0.5m from the ceiling and half way between the side walls. The fly is on the other side wall, 0.5m from the floor and halfway between the side walls. The spider wants to reach the fly but must crawl on the floor, walls and ceiling to get to it. What is the shortest route the spider might take? (HINT: IT IS NOT 21m)
This question was a question a friend recently gave me, to see if I could solve it. I have read and re-read it so many times But anyway, I would just like to know the working out and the answer for this problem!
I think the Pythagoras Theorem is involved somewhere.
I need this problem solved as soon as possible please!