Question

Find the volume of a sphere whose radius is
(i) 7 cm
(ii) 0.63 m

Answer 1

Volume of sphere $=\frac{4}{3}\pi R^3$

$\left(i\right)R=7cm\Rightarrow v=\frac{4}{3}\pi \times 7^3$

$=1436.75cucm$

$\left(ii\right)R=0.63m\Rightarrow v=\frac{4}{3}\pi \times (0.63{)}^3$

$=1.05m^3$