Question

Please help ASAP.. Pythagoras theorem

Answer 1

(Make sure you are in degrees instead of radians.)

We are given opposite and hypotenuse.

Use Soh-Cah-Toa:
$\sin\theta=\frac{opp}{hyp}$
$\rightarrow\sin\theta=\frac{3.4}{5.8}$
$\rightarrow\theta=\sin^{-1}\frac{3.4}{5.8}$

In degrees, this is about 35.9°