How to determine the mass and volume of a regular solid?

Question

I know how to find the mass and volume of an irregular solid, but how about a regular solid?

Answer 1

The volume of a regular solid can be calculated mathematically (rather than by displacement).  Examples of regular solids include cubes, spheres, cones - all of which have volumes readily calculated from a formula.  To use the formula, you will need to measure the dimensions of the object, and you will still need to find the solid's mass to get the density (which is always mass divided by volume).