Respuesta :

By definition

[tex]\tan (angle)=\frac{\text{opposite side}}{\text{adjacent side}}[/tex]

From the graph

[tex]\begin{gathered} \tan (30)=\frac{7}{x} \\ \frac{1}{\sqrt[]{3}}=\frac{7}{x} \\ x=7\sqrt[]{3} \end{gathered}[/tex]

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