A round hole is drilled through the center of a spherical solid with a radius (r). The resulting cylindrical hole has height 4 cm.

a)What is the volume of the solid that remains?

b)What is unusual about the answer?

(In reply to

Question about the givens by Larry)

To address your questions:

- The radius r refers to the radius of the spherical solid.
- The round hole is drilled all the way through the sphere.
- The resulting round hole is a perfect cylinder of unknown radius
(no larger than the radius of the original spherical solid), and of
height 4cm.

I am not giving any information that is not already in the problem.