Question

What is the volume of the spear w/t a radius of 3cm options 3,6,9,36

Answer 1

$\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}\quad \begin{cases} r=radius\\ -----\\ r=3 \end{cases}\implies V=\cfrac{4\pi (3)^3}{3}$