Two pillars have been delivered for the support of a shade structure in the backyard. They are both 10 feet tall, but unfortunately the makers of the pillars did not create the same-shaped pillars. What are the steps you can take to determine whether the pillars have the same volume?

:Why was the volume of your fountain smaller than the volume of the ideal sphere? What is a more accurate method for approximating the volume of the spherical slab other than using just cylindrical slabs?