Question

how can I find the area of a circle

Answer 1

by applying formula of area that is πr^2

Answer 2

By using the formula
$area \: of \: circle \: = \pi {r}^{2}$
you can find the area of circle
where,
$r = radius \: of \: circle$
and
$\pi = 3.14 \: or \: \frac{22}{7}$