Dooooobleeeee Poooossssstttttt:
https://web2.0calc.com/questions/spq-is-a-straight-line-we-have-sin-rpq-7-25-what-is-sin-rps
Its $\frac 7{25}$ if you don't wanna clik on dat link.
THX, Nacirema
[ That's "American" spelled backwards........such as "Body Ritual Among the Nacirema " ]
LOL!!!!....I only recognized it because I had to read the cited work in a Sociology class a few years ago......(well actually, MORE than a few years ago....)