Henry Ernest Dudeney/Puzzles and Curious Problems/220 - The Five Fences

by : $220$

 * The Five Fences
 * A man owned a large, fenced-in field in which were $16$ oak trees, as depicted in the diagram.


 * Dudeney-Puzzles-and-Curious-Problems-220.png


 * He wished to put up five straight fences so that every tree should be in a separate enclosure.
 * How did he do it?