3. Triangle ABC is shown in Fig. 1.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{4eb48b49-816b-4a08-9f7f-c20313c4d1c9-06_517_652_237_845}
\captionsetup{labelformat=empty}
\caption{Fig. 1}
\end{figure}
Find the perimeter of triangle ABC .
(3)
[0pt]
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