How would you calculate density for a cubic solid?

First find the volume. The expression for regular shape like cubic solid is v=length x width x height

Then find the mass of the cube by using a scale. Finally use the expression to find the density.

D = mass divided by volume (D = mass/volume)

You are given the mass of the metal block, but you must calculate its volume using the measurements of the given dimensions. For a rectangular solid, volume = length x width x height; therefore, the volume of the block is (3 cm) (5 cm) (4 cm) or 60 cubic centimeters. The density is 14 g/60 cc or 0.23 g/cc.