1. The problem statement, all variables and given/known data Find the minimum distance between the surface of a sphere with radius 3 with center (2,1,2) and a cube with length 6 with center (12,11,12) 2. Relevant equations sphere formula: (x-x0)^2+(y-y0)^2+(z-z0)^2=r^2 3. The attempt at a solution Don't know how to attempt this problem. My assumption is to find the distance between the two centers, then subtract the distance between the radius and the surface of the sphere, and also subtract the distance between the center of the cube to one of the sides. would this procedure be correct?