Q. 2.     Find the area of the following circles, given that:          (a)  $radius=14\; mm$  (Take $\pi =\frac{22}{7}$)

Area of circle is $= \pi r^2$
$\Rightarrow \pi r^2 = \frac{22}{7}\times (14)^2 = 616 \ mm^2$
Therefore, the area of the circle is  $616 \ mm^2$