Henry Ernest Dudeney/Puzzles and Curious Problems/231 - The Rose Garden

by : $231$

 * The Rose Garden
 * A man has a rectangular garden, and wants to make exactly half of it into a large bed of roses,
 * with a gravel path of uniform width round it.
 * Can you find a general rule that will apply equally to any rectangular garden, whatever its proportions?


 * All the measurements must be made in the garden.
 * A plain ribbon, no shorter than the length of the garden, is all the material required.