Length of wire wrapped around a solenoid?

1. The problem statement, all variables and given/known data
Hi everyone, the problem I’m stuck on reads: " Imagine a solenoid 3m in diameter, 5m long having 1164 turns of super conducting cable. What length of super conducting cable is used to wind this solenoid?"

2. Relevant equations
Circumference = 2pi*radius

3. The attempt at a solution
My approach was: Multiply (2pi * 1.5m) * (1164 turns) * (5m) = 54852m

I would greatly appreciate help 🙂 Thank you for your time!

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