If the volume of the inscribed cube is 64, then the surface area of the sphere is 64______ .

If the volume of the inscribed cube is 64, then the surface area of the sphere is 64______ .

The volume of the inscribed cube of the ball is 64, so the edge length of the cube is 4, the diagonal of the cube is 42 + 42 + 42 = 43, so the radius of the ball is 23, so the surface area of the ball is 4 π R2 = 4 π× (23) 2 = 48 π