There is a chain nailed to the wall. The chain is 10 feet long and the center of the chain dips down 5 feet from where each side of the chain is nailed to the wall. How far are the 2 ends of chain from each other?
both ends are nailed with the same nail. in order for the 10 foot chain to dip down 5 feet it must dip 5 feet down and five feet up totaling the length of the chain