Normal orientation into angle a, b, c regarding x, y, z-plane

Grasshopper
1

I need the 3 angles a, b, and c of an survace normal regarding the x, y and z-plane an do not want deconstruct the vector and merge after using angle separetly.

Thanks for help

2

Where is your GH file with geometry? :-1:

3. Attach minimal versions of all the relevant files

3

Please attach some pictures or minimal version of your gh file