Question

Find the perimeter of the following figure:

Answer 1

$$\begin{gathered} \mathrm{Perimeter}\mathrm{of}\mathrm{the}\mathrm{figure}=\mathrm{AB}+\mathrm{BC}+\mathrm{CD}+\mathrm{DE}+\mathrm{EF}+\mathrm{FG}+\mathrm{GH}+\mathrm{HA} \\ =10+10+20+30+20+20+10+20 \\ =140\mathrm{m} \end{gathered}$$