Henry Ernest Dudeney/Modern Puzzles/130 - Mr. Grindle's Garden

by : $130$

 * Mr. Grindle's Garden
 * "My neighbour," said Mr. Grindle, "generously offered me, for a garden,
 * as much land as I could enclose with four straight walls measuring $7$, $8$, $9$ and $10$ rods in length respectively."


 * "And what was the largest area you were able to enclose?" asked his friend.


 * Perhaps the reader can discover Mr. Grindle's correct answer.