The wavelength of the laser light is 576 nm, and the screen is 1.69 m away from

The wavelength of the laser light is 576 nm, and the screen is 1.69 m away from the wire. What is the diameter of the wire? (Hint: one of the higher order diffraction minima lines up with a well defined x-value. Also, it is perfectly safe to use the small angle approximation: sin(θ) = tan(θ)).