Find the area of a circle whose radius is$14 \mathrm{m}$.

 Given,

The radius of a circle $= 14 \mathrm{m}$

The area of a circle$= {\mathrm{\pi r}}^2$(Where $\mathrm{\pi }=\frac{22}{7}$).

$\text{= }\frac{22}{7} \times 14\times 14 = 616 {\mathrm{m}}^2$

So, the area of a circle is $616 {\mathrm{m}}^2.$