In a Young’s double-slit experiment, 610-nm-wavelength light is sent through the slits. The intensity at an angle of 2.55 from the central bright…

In a Young’s double-slit experiment, 610-nm-wavelength light is sent through the slits. The intensity at an angle of 2.55° from the central bright fringe is 79% of the maximum intensity on the screen.
What is the spacing between the slits?