Question

Find the approximate unknown angle o using inverse trigonometric ratios (sin-1 , cos-1, or tan-1) if it was 7, 11

Answer 1

Given:

$\begin{gathered} \text{Opposite side=}11 \\ \text{adjacent side=7} \end{gathered}$

To Find:

$\text{The value of }\theta$

Explanation:

$\begin{gathered} \tan \theta=\frac{opposite\text{ side}}{adjacent\text{ side}} \\ \tan \theta=\frac{11}{7} \\ \theta=\tan ^{-1}(\frac{11}{7}) \\ \theta=57.53\degree \end{gathered}$

Final Answer:

$\theta=57.53\degree$