Propagation Velocity of Transverse Waves

[Sepamo]

A steel wire of radius 0.65 mm is subject to a tension of 11.29 N. Steel has a volume mass density of 7800 kg/m3. Find the velocity of propagation of transverse waves on this wire, in m/s.

I found the cross sectional area of the wire but I am not sure where to go from there. I know I need to convert the volume mass density to linear mass density so I can use the formula
Cw=sqrt(Tension/linear mass density).

 

[Doc Al]

Find the volume of one meter of the wire, then its mass.

 

[Sepamo]

Thank You