Question

Find the volume of a sphere, whose diameter is $8mm$.(Take $\pi =3.14$) (Round your answer to the nearest tenth).

• A. $243.6{mm}^3$
• B. $267.94m{m}^3$
• C. $1,143.6{mm}^3$
• D. $2,143.6mm$

Answer 1

The correct option is B $267.94m{m}^3$

Formula:

Volume of sphere$=\frac{4}{3}\pi r^3$

where,

$r=radius$

Given:

$r=4mm$

After substituting the values in the formula we get:

$\frac{4}{3}\pi r^3=\frac{4}{3}\times 3.14\times 4^3$

$=\frac{4}{3}\times 3.14\times 4\times 4\times 4$

$=\frac{803.84}{3}$

$=267.94m{m}^3$