Find the volume of a sphere whose radius is: 2cm          (ii)  3.5cm     (iii)  10.5 cm

Explanation

Volume of a sphere `= 4/3 pir^3` Cubic Units
i)`r=2cm`
volume`=4/3xx22/7xx(2)^3=33.52`
Volume of spehre`=33.52cm^3`
ii)`r=3.5`
Volume`=4/3xx22/7xx3.5^3=179.666`
Volume of sphere is `=179.666 cm^3`
iii) `r=10.5cm`
Volume`=4/3xx22/7xx(10.5)^3=4851`
volume of sphere `=4851 cm^3`