Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{60 \: meter}}}}}[/tex]
Step-by-step explanation:
Area of a park = 3600 m
Length of one side of the park ( l ) = ?
Using the formula of area of square
[tex] \boxed{ \sf{area \: of \: square = {l}^{2} }}[/tex]
[tex] \longrightarrow{ \sf{3600 = {l}^{2} }}[/tex]
[tex] \longrightarrow{ \sf{ {l}^{2} = 3600}}[/tex]
[tex] \longrightarrow{ \sf{ \sqrt{ {l}^{2} } = \sqrt{3600}}} [/tex]
[tex] \longrightarrow{ \sf{l = 60 \: meter}}[/tex]
Length of one side of the park = 60 meter
Hope I helped!
Best regards! :D
