Question

Calculate the volume of a sphere with radius $2m.(\pi =3.142)$

• A. $33.51m^3$
• B. $73.51m^3$
• C. $63.51m^3$
• D. None of these

Answer 1

The correct option is A $33.51m^3$

Vol. of sphere $V=\frac{4}{3}\pi r^3=\frac{4}{3}\times 3.14\times 2^3$

$V=\frac{4}{3}\times 3.14\times 8$
$=\frac{32}{3}\times 3.14$
$=\frac{100.48}{3}=33.49m^3$