In order to problem solve using these rations we first need to know when, and how to use trigonometry properly. Three simple “words” to remember when to use one of the three functions (sin,cos,tan) is SOH CAH TOA which can be remember like this S(in, Opposite, Hypotenuse) C(os, Adjacent, Hypotenuse) T(an, Opposite, Adjacent). Below I have given an example of a simple problem, but with one of the less straightforward calculator steps (finding an angle). It isn’t a word problem but its the same thing when you look at the overall picture a word problem just gives you the information in a paragraph you have to find it yourself and plug it in, same thing here but you are given a filled out triangle: its basically just one step after the word problem (you would set this up).