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What is the volume of a sphere with a radius of 6 mm?

Given: [tex]V=\frac{4}{3} \pi r^3[/tex]

A. [tex]V=216 \pi \, \text{mm}^3[/tex]
B. [tex]V=288 \pi \, \text{mm}^3[/tex]
C. [tex]V=512 \pi \, \text{mm}^3[/tex]
D. [tex]V=648 \pi \, \text{mm}^3[/tex]

Sagot :

To find the volume of a sphere with a given radius, we use the formula for the volume of a sphere, which is

[tex]\[ V = \frac{4}{3} \pi r^3 \][/tex]

Given the radius [tex]\( r \)[/tex] is 6 mm, let's substitute [tex]\( r \)[/tex] with 6 in the formula.

[tex]\[ V = \frac{4}{3} \pi (6)^3 \][/tex]

First, calculate [tex]\( (6)^3 \)[/tex]:

[tex]\[ 6^3 = 6 \times 6 \times 6 = 216 \][/tex]

Next, multiply this result by [tex]\( \frac{4}{3} \)[/tex]:

[tex]\[ \frac{4}{3} \times 216 = 4 \times \frac{216}{3} = 4 \times 72 = 288 \][/tex]

So, the volume in terms of [tex]\( \pi \)[/tex] would be:

[tex]\[ V = 288 \pi \text{ mm}^3 \][/tex]

Thus, the volume of the sphere with radius 6 mm is:

[tex]\[ V = 288 \pi \text{ mm}^3 \][/tex]

Which aligns with the result we used.