Question

The volume of sphere with radius $3cm$ is ................. ${cm}^3$.

• A. $14\pi$
• B. $18\pi$
• C. $2\pi$
• D. $36\pi$

Answer 1

The correct option is D $36\pi$

Given : Radius$\left(r\right)=3cm$

We know, Volume of a sphere $=\frac{4}{3}\pi r^3$
$⟹V=\frac{4}{3}\times \pi \times 3\times 3\times 3$
$⟹V=4\times \pi \times 3\times 3=36\pi$

Hence, volume of a sphere is $36\pi$.