Triangle angular functions helper

As I did my school I found it very hard to keep in mind, how to calculate the angles inside of a right triangle.Calculating all the sides via the Pythagorean theorem was easy. But what do I have to pick, if I need one of the two inner angles.This little helper (in the past, I wrote: sincostancotGAGAHHAG on my paper, but now I have a 3d printer :D G stands for German word „Gegenkathete“ à opposite legA stands for German word „Ankathete“ à adjacent legH stands for „Hypothenuse“ What to do:you look