i didnt learn sin cos tan yet in school so i need the help of some of you who did. id like to find the angle between 2 objects, the results being the angle relative to one object going to the other, so lets say an explosion goes off at point a, and whatever is being affected is at point b, id like to know at what angle would point A be facing to be looking right at point b. so i can calculate which way to throw point.b

basically i want the function for that (example: A^2+B^2=C^2 for the distance formula)

i know thats what sin,cos, and wtv is for but i havnt got there yet im only 13. so plz help