A rectangular piece of paper measures 12 cm by 6 cm. One corner of the sheet of paper is folded up to just reach the opposite side as shown below. What is the minimum length of the resulting crease in the paper?
A rectangular sheet of paper 12 cm × 6 cm is folded so that one corner meets the longer of the opposite edges. What is the shortest possible length of the crease? Shortest possible length of the crease is Sqrt(5)/2*6 =~ 6.7 cm.
