SaM - 4 Wires Measurement with Wire Resisitances

If we were consider a 2 wires measurement system, we would have a meaured reistance value:$R_{\text{MEASURED}}=R(T)+R_{W1}+R_{W2}$Instead if we use 4 wires, like so: Now the measured value, if $R_{W1}\approx R_{W2}$, is exactly $R(T)$.