Question 1200559:  A fence encloses a square field whose sides measure 5 m. A horse is tethered to a 
rope that is attached to a corner post of the field so that the horse is outside the fence. If the rope holding the horse is 9 m long, find the total grazing area of the horse in square metres. 
 
 Answer by ikleyn(52900)      (Show Source): 
You can  put this solution on YOUR website! .
 
 
Solving this simple entertainment problem is a matter  
of making a corresponding sketch.
 
 
As soon as you make it,  using a pen and a paper,  the solution is clear.
 
 
 
I mean,  it is clear to everyone familiar with the formula 
 
for the area of a circle,  which is a pre-requisite.
 
 
 
 
  | 
 
  
 
 |   
 
 |