Question

The diameter, D, of a sphere is 7.4mm. Calculate how he spheres volume, V.

Answer 1

Given :

The diameter D of sphere is 7.4 mm .

To Find :

The volume of sphere.

Solution :

Radius of sphere is r = D/2 .

r = 3.7 mm .

We know, volume of sphere is given by :

$V = \dfrac{4\pi r^3}{3}\\\\V = \dfrac{4\times 3.14 \times 3.7}{3}\ mm^3\\\\V = 15.5 \ mm^3$

Hence, this is the required solution.