Step-by-step explanation:
Here volume remains constant.
Volume of big sphere = Volume of 3 identical small spheres.
Let r be the radius of small sphere,
We have
[tex]\frac{4}{3}\pi \times 9^3=3\times \frac{4}{3}\pi \times r^3\\\\3r^3=9^3\\\\r^3=243\\\\r=6.24[/tex]
Radius of identical spheres = 6.24
