if 5 tan theta = 12 then 13 sin theta / 3is? Share with your friends Share 2 Pooja answered this Here is the link for the answer to your query:https://www.meritnation.com/ask-answer/question/if-5-tan-ais-12-then-what-is-13-3-sin-a-please-show-me-the/introduction-to-trigonometry/5704566 -1 View Full Answer Dhruwin Shah answered this Given-5 tan theta =12tan=5/12=opp/adjlet opposite side be 5k and adjacent side be 12kLet theta be angle ctherefore,BC=adjacent side=12k and AB=opposite side=5kBy pythagoras theorem,AC square=AB square + BC square =25k square + 144k square =169k squarehypotenuse =13ksin =opp/hyp =5/13 =13(5/13)/3 =5/3 -3