Formula of thickness in hallow steel ball?

The thickness of a hollow steel ball can be determined using the formula for the volume of a hollow sphere. If ( R ) is the outer radius and ( r ) is the inner radius, the volume ( V ) of the hollow sphere can be expressed as ( V = \frac{4}{3} \pi (R^3 - r^3) ). The thickness ( t ) of the ball is then given by ( t = R - r ). To find the thickness, you would need the measurements of either the outer radius or the inner radius.