Two triangles are Similar if the only difference is size (and possibly the need to turn or flip one around). Therefore would be answer B.
Find the ratio
[tex]\begin{gathered} \frac{80}{30}=\frac{d}{180} \\ d=180\cdot\frac{80}{30} \\ d=480\text{ ft} \end{gathered}[/tex]
The distance would be 480 ft
