Right Angle Triangle, at a loss

[GroundSpider]

So I have calculated Sin(70°) = Opp / 30.816, in this equation Opp = 28.95757

BUT when I do Sin(X) = 28.95757 / 30.816 I result in 1.08422336464 when converted to degrees gives me 62.12° NOT 70°

If I put Opp (a) (28.95757) and Hypotenuse of (30.816) into the following calculator it says 70° should be the resulting angle A.

Right-Angled Triangle Calculator



What am I doing wrong?

 

[MarkFL]

According to W|A, we find:

$$\frac{180}{\pi}\arcsin\left(\frac{28.95757}{30.816}\right)\approx70.0000119479974
$$