Question

I don't understand how to do trigonometry

Answer 1

For the unknown angle, perpendicular side is 10 and base side is 14.

Determine the measure of unknown angle by using the trigonometry in triangle.

$\begin{gathered} \tan \theta=\frac{10}{14} \\ \theta=\tan ^{-1}(\frac{10}{14}) \\ =35.53 \\ \approx35.5 \end{gathered}$

So measure of unknown angle is 35.5 degrees.