We've learned that the volume of a cuboid is its length multiplied by its width multiplied by its height (\(l \times w \times h\)). The area of the green shaded end of the cuboid (the cross section) ...

Density is the mass per unit volume. Density can be found using this equation. Density is sometimes measured in g/cm 3. Make sure that you use units that are consistent with the question in an exam.