(Solved): please help draw the represnation please Monochromatic light passes through a pair of slits with se ...

Monochromatic light passes through a pair of slits with separation distance $D=26.5?\mathrm{m}$, and the $m=1$ bright fringe is observed at an angle $?=32.0^{?}$. Next, this same wavelength of light is sent through a single slit with width $W=80.0?\mathrm{m}$, and the $n=2$ dark fringe is observed at an angle $?$. What is $?$ ? (Note: it is important to consider whether or not the small-angle approximation can be used here.)