1. The problem statement, all variables and given/known data what is the resistance of copper wire in this situation? 200 meters long strand of wire, with a resistivity of 0.625x10^-6 2. Relevant equations im not sure if this is the right equation but: resistance=resistivity x length/area 3. The attempt at a solution this is the part im stuck at, i have the resistivity and the length of the wire, but what do i use for the area? this is what i have so far: resistance= 0.625x10^-6 x 200/area as you can see i have no idea what area to use?