To answer this question we will use the following diagram as a reference:
Notice that the perimeter of the given figure is the sum of 2 times the perimeter of the semicircles and 48m, the perimeter of each semicircle is:
[tex]\begin{gathered} P_S=\pi\times radius=6\pi m \\ \approx18.84m. \end{gathered}[/tex]
Therefore the perimeter of the given figure is:
[tex]P=2*18.84m+48m=85.68m.[/tex]
Answer: 85.68m.
