Question

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

Answer 1

`A=121pi` `cm^2`

Explanation:

We know that , area of the circle is

`A=pi*r^2,` where, `r` is radius.

`r=11` cm (given)

So,

`A=pi(11)^2=121pi` `cm^2`