Answer :
Solution:
The perimeter of a polygon is the sum of the lengths of each side. Thus, in this case, we have:
[tex]P\text{ = 9 cm + 5 cm + 11 cm }=\text{ 25 cm}[/tex]then, the correct answer is:
[tex]P\text{ = 9 cm + 5 cm + 11 cm }=\text{ 25 cm}[/tex]