Imagine that you have a strip of fencing that is 1 meter high and 10 meters long.  It is totally flexible and so can be made into any shape, but you can’t cut it.  You are standing in the middle of a field.  What is the best way of arranging the fencing to ensure that it encloses the largest amount of land?

Solution on Monday!

I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.