How do i know which trignometric ratio should use in hieght and distance question? plz tell fast..... Share with your friends Share 0 Shubham Chourasiya answered this Follow the given link for your query:https://www.meritnation.com/ask-answer/question/how-can-i-use-sin-theta-or-cos-theta-or-tan-theta-or-cosec-t/some-applications-of-trigonometry/2774311 0 View Full Answer Free Member answered this it depends whether you want to find height , distance or length 0