Respuesta :

Answer:

3.7ft

Explanation:

See below image of the triangle;

Let x represent the length of QR, we can then find QR by taking sine of angle 26;

[tex]\begin{gathered} \sin 26=\frac{x}{8.5} \\ 8.5\sin 26=x \\ x=3.7ft \end{gathered}[/tex]

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