The square has all four sides equal therefore the perimeter is four times the length of any side of the square.
[tex]P=4L[/tex]In this case, we have that all four sides are equal to 4.5. Then, L=4.5.
Using the perimeter formula:
[tex]P=4(4.5meters)[/tex][tex]P=18\text{meters}[/tex]Hence, the perimeter is equal to 18 meters. The correct answer is
option D.
