# What's the area of a circle if it's radius is 11 cm?

Mar 21, 2018

$A = 121 \pi$ $c {m}^{2}$

#### Explanation:

We know that , area of the circle is

$A = \pi \cdot {r}^{2} ,$ where, $r$ is radius.

$r = 11$ cm (given)

So,

$A = \pi {\left(11\right)}^{2} = 121 \pi$ $c {m}^{2}$