Answer
$Resistance=2.56Ω\approx2.6Ω$
Work Step by Step
The resistance of the circuit can be calculated as one of the sides of the right triangle by using the Pythagorean Theorem.
$Impedance^{2}=Resistance^{2}+Reactance^{2}$
$Resistance=\sqrt {Impedance^{2}-Reactance^{2}}$
$Resistance=\sqrt {(4.5Ω)^{2}-(3.7Ω)^{2}}=2.56Ω\approx2.6Ω$
