Answer:
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.
