Question

The diameter of a sphere is 2.14 cm. Calculate the volume of the sphere to the correct number of significant figures.

Answer 1

Answer:

Explanation: we have to find volume of sphere. Put the formula of v of sphere and get the answer.

Answer 2

Answer:

The volume of the sphere is 5.13 $cm^{3}$

Explanation:

The typical example of what a spherical shape looks like is a basketball. Now to calculate the volume of sphere we use the following formula:

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

where r is the radius

In the question we are given the diameter instead of the radius. But since the radius is half of the diameter we simply work out as thus:

$r=\frac{d}{2}=\frac{2.14}{2}=1.07$

Substituting the radius into equation (1), the answer is as follows:

$\frac{4}{3}\times \frac {22}{7}\times {1.07}^{3}=5.13 cm^{3}$

Therefore, the volume of the sphere is 5.13 $cm^{3}$