Respuesta :
V=4/3*π*R²
V1= 4/3*π*4=16/3π
V2=4/3*π*9= 12π
V=V2-V1=12π-16/3π=20/3π
20/3π cm³ is in between the two spheres.
V1= 4/3*π*4=16/3π
V2=4/3*π*9= 12π
V=V2-V1=12π-16/3π=20/3π
20/3π cm³ is in between the two spheres.