Question

Diameter of a sphere with diameter of 9 inches

3050 in³


84.8 in³


382 in³


215 in³

Answer 1

if the diameter is 9 units, then the radius is half that, or r = 4.5, therefore


`\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}\quad \begin{cases} r=radius\\ -----\\ r=4.5 \end{cases}\implies V=\cfrac{4\pi 4.5^3}{3}\implies V=\cfrac{364.5\pi }{3}`