Question

what will be the area of a circle if its radius is tripled

Answer 1

Let radius be r.

Given that,radius =3r.

Area =

$\pi \: {r}^{2}$

$= \: \pi \: 3 {r }^{2} = \pi \: 9 {r}^{2}$

Answer 2

$\huge \red {\colorbox{gold}{♡Required \: Answer♡}}$

Let radius be r.

Given that,radius =3r.

Area =πr^2 =pie 9 r^2