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Find k and l using angles of elevation and depression

Find k and l using angles of elevation and depression-example-1
User Amirfl
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The given triangle is right angled.

Using trigonometric properties for a right triangle,


\begin{gathered} \tan \theta=\frac{opposite\text{ side}}{\text{adjacent side}} \\ \end{gathered}
\begin{gathered} \tan 15\degree=(10)/(l) \\ l=(10)/(\tan 15\degree) \\ l=37.32 \end{gathered}
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User Andrey Shokhin
by
8.3k points

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