Question

The diameter, D, of a sphere is 6.6 mm. Calculate the sphere's volume, V.

Answer 1

The volume of a sphere is given by the following equation:

$V=\frac{4}{3}\pi\cdot r^3^{}$

Where r is the radius that is equal to half the diameter. If the diameter is 6.6mm then the radius is:

$\frac{6.6\operatorname{mm}}{2}=3.3\operatorname{mm}$

Then the volume of the sphere is given by:

$V=\frac{4}{3}\pi\cdot(3.3\operatorname{mm})^3=150.53mm^3$

So the volume of the sphere is 150.53 cube milimeters.