I have this question that I cannot find how to solve...
The question is like this:

Find an acute θ if

a) sin(θ)=0.12
b) cot(θ)=3

The answer to a) is 6'54', and for b) it is 18'26'.
But I don't know how to get to these answers...

Thank you for your help in advance.


Liviender