x*(x+9)=54 x=4.116 in
Four Horses are tethered at four corners of a square plot of side 63 metres, so that they just cannot reach one another. What is the area left ungrazed?
I've measured it from side to side, 'Tis three feet long and two feet wide. It is of compass small, and bare To thirsty suns and parching air.
What is it?
