Question

A horse is tied to a pole with 21 m long string. Find the area where the horse can graze.

Answer 1

The area that can be covered by horse will be in the shape of circle.
So now the area where the can graze is
πr^2
The length of string acts as radius of the circle
so
πr^2= 22/7 × 21×21
=1386
therefore the horse can graze in area of 1386 sq metres.