Question

What’s the missing side? Also round it to the nearest tenth. Trigonometry.

Answer 1

For this problem we use the trigonometric function cosine:

$\cos (59^{\circ})=\frac{28}{x}$

Solving for x we get:

$\begin{gathered} x=\frac{28}{\cos (59^{\circ})}\approx54.4 \\ x\approx54.4 \end{gathered}$