Respuesta :

Answer:

22 meters.

Step-by-step explanation:

It's important to notice that the area is circular, which is defined by

[tex]A= \pi r^{2}[/tex]

Replacing given values and solving for r, we have

[tex]121 \pi = \ pi r^{2} \\121=r^{2}\\ r= \sqrt{121}=11[/tex]

But, the diameter is twice the radius, so

[tex]d=2r=2(11)=22[/tex]

Therefore, the diameter is 22 meters.