I'm new to trigonometry, and I want to know if this is right.

Being used to algebra, the trigonometric functions seem abstract to me since there are no definite operations.

What I assume: the right triangle model is just amethodfor defining the functions, correct?

In the function , if I know then I can solve for like this:

Pretend is one of the acute angles in the triangle, and what the ratio for opposite to the hypotenuse willjust happento be . Correct?

So it's not actual operations, just what the ratio will be in this situation?