Please answer

Perimeter of Square = Circumference of the circular wire.

4a = L ........... a - side of square; L - circumference of the circular wire or length of the wire.

a = L/4

R_CirWire = ρL/A;

ρ/A = R_CirWire/L

R_edge = ρa/A,

where A is the cross sectional area of wire and will not change.

R_edge = ρa/A =a R_CirWire/L = 6/4 = 1.5 Ω

Regards,

Team,

TopperLearning.