find out the circumference when the radius is 3cm
\(U=2\times\pi\times r\)
\(U=2\times\pi\times 3cm\)
\(\pi\) =3.1415926...
\({\color{blue}C=18.8496cm}\) !
Sorry!
\(C=2\times\pi\times r\)
\({\color{blue}C=2\times\pi\times 3cm}\) !
!
