Question

Find the volume of a sphere-shaped metallic shot-put having diameter of $8.4cm$. (Take $\pi =\frac{22}{7}$)

Answer 1

Let $r$ be radius of the metallic shot-put
Now, $2r=8.4cm$ $\Rightarrow$ $r=4.2cm$
Volume of shot-put, $V=\frac{4}{3}\pi r^3$
$=\frac{4}{3}\times \frac{22}{7}\times \frac{42}{10}\times \frac{42}{10}\times \frac{42}{10}$
Thus, the volume of the shot-put $=310.464cu.cm$.