We are asked to find the perimeter of the hexagon shown in the figure,
Recall that the perimeter is the sum of all the sides of a hexagon.
[tex]\begin{gathered} P=5\operatorname{cm}+4\operatorname{cm}+4\operatorname{cm}+3\operatorname{cm}+4\operatorname{cm}+3\operatorname{cm} \\ P=23\operatorname{cm} \end{gathered}[/tex]
Therefore, the perimeter of the given hexagon is 23 cm.
Option B is the correct answer.
