Respuesta :

Answer:

[tex] \huge{ \fbox{ \sf{12 \: miles}}}[/tex]

Step-by-step explanation:

Given,

Area of a square plot = 9 miles

First, finding the length of the land

[tex] \boxed{ \sf{Area \: of \: a \: square \: = \: {length}^{2} }}[/tex]

[tex] \mapsto{ \sf{9 = {length}^{2} }}[/tex]

[tex] \mapsto{ \sf{ {length}^{2} = 9}}[/tex]

[tex] \mapsto{ \sf{ \sqrt{ {(length)}^{2} }} = \sqrt{9} } [/tex]

[tex] \mapsto{ \sf{length = 3 \: miles}}[/tex]

Now , finding the perimeter of the land :

[tex] \boxed{ \sf{perimeter \: of \: a \: square = 4 \: * length}}[/tex]

[tex] \mapsto{ \sf{perimeter \: = \: 4 \:  * \: 3}}[/tex]

[tex] \mapsto{ \sf{perimeter \: = 12 \: miles}}[/tex]

The perimeter of the land = 12 miles

Hope I helped!

Best regards! :D

~[tex] \text{TheAnimeGirl}[/tex]

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