If the volume of a sphere is `(4)/(3) pi r^(3)` where `pi = (22)/(7)` and r is radius of the sphere, then the radius of the sphere of volume `(704)/(21) m^(3)` is _____.

Answer

2 m

Explanation

`(4)/(3)pi r^(3) = (704)/(21)`
`r^(3) = (704)/(21) xx (3)/(4) xx (7)/(22)`
`r^(3) = 8`
r = 2m