Lexy and jin study the diagram shown. lexy says that the diffraction angle is the one labeled r, and jin says that the diffraction angle is the one labeled s. which best explains who is correct?

lexy is right because she has the labeled s

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.