Let the volume of the inscribed sphere of a cube be 32 / 3 π, then the edge length of the cube is? And it is an inscribed sphere

Let the volume of the inscribed sphere of a cube be 32 / 3 π, then the edge length of the cube is? And it is an inscribed sphere

Volume of sphere: (4 / 3) * π * R ^ 3 = (32 / 3) π
r^3=8
r=2
The edge length of the cube is 2 * 2 = 4