To find the volume of a sphere, you can use the formula:
\[ V = \frac{4}{3} \pi r^3 \]
where \( V \) is the volume, \( \pi \) is approximately 3.14, and \( r \) is the radius of the sphere.
Given:
- \( r = 12 \) mm
Now, substituting the values into the formula:
\[ V = \frac{4}{3} \times 3.14 \times (12)^3 \]
First, calculate \( (12)^3 \):
\[ (12)^3 = 12 \times 12 \times 12 = 1728 \]
Now plug this into the volume formula:
\[ V = \frac{4}{3} \times 3.14 \times 1728 \]
Now multiply \( 3.14 \times 1728 \):
\[ 3.14 \times 1728 \approx 5425.12 \]
Now, calculate \( \frac{4}{3} \times 5425.12 \):
\[ \frac{4}{3} \times 5425.12 \approx 7233.49 \]
Thus, the volume of the spherical chocolate truffle is approximately:
\[ \boxed{7233.49} \text{ mm}^3 \]