Question:
A horse is tied to a pole with 28 m long string. Find the area where the horse can graze. (Take π = 22/7).
Solution:
We know that the horse is tied to a pole with 28 m long string. So the horse can graze the area of a circle of radius 28 m.
Area of circle is
$A=\pi r^{2}$
$=\frac{22}{7} \times 28 \times 28 \mathrm{~m}^{2}$
$=2464 \mathrm{~m}^{2}$
Hence the horse can graze $2464 \mathrm{~m}^{2}$ area.