Answer:
r= 3.30m (3 s.f.)
Step-by-step explanation:
[tex]\boxed{volume \: of \: cylinder = \pi {r}^{2}h }[/tex]
219= πr²(6.4)
[tex] {r}^{2} = \frac{219}{6.4\pi}[/tex]
Square root both sides:
[tex]r = \sqrt{ \frac{219}{6.4\pi} } [/tex]
r= 3.30m (3 s.f.)
