I have a right triangle ABC. I know the measures of the opposite, hypoteneus, and adjacent sides.
Using this picture:
Image:Trigonometry triangle.svg - Wikipedia, the free encyclopedia
I want to find angle A.
I understand sin(A) = opposite / hypoteneus.
How do I find what A is though?
If I take arcsin(opposite/hypoteneus), it doesn't seem to give me the right answer (A).