I'm working on a little project with a basic programming language and I would like to find the missing angles of a right triangle but I don't have access to ArcSin, ArcCos, ArcTan.

I do know the lengths of all legs of the triangle and I do have access to some math functions such as sin, cos, tan, sqrt, pi, and powers.

So, given access to these functions but not to the inverse trig functions, is there a way I can use the information that I have to calculate the remaining angles in degrees?