1. The problem statement, all variables and given/known data What is the density of lithium metal in g/cm^3 if a cylindrical wire with a diameter of 2.40mm and a length of 15.0cm has a mass of 0.3624g? 2. Relevant equations D=m/V 3. The attempt at a solution The problem I'm having is I don't understand what the problem is asking. How do you calculate the density of lithium metal with the diameter/length of a cylindrical wire and a the mass of the wire.