Area of square = 36 unit²
Perimeter of square[tex].[/tex]
◈ Side of square :
[tex]:\implies\sf\:Area=(side)^2[/tex]
[tex]:\implies\sf\:36=(side)^2[/tex]
[tex]:\implies\sf\:side=\sqrt{36}[/tex]
[tex]:\implies\bf\:side=6\:unit[/tex]
◈ Perimeter of square :
[tex]:\implies\sf\:perimeter=4\times (side)[/tex]
[tex]:\implies\sf\:perimeter=4\times 6[/tex]
[tex]:\implies\underline{\boxed{\bf{\purple{perimeter=24\:unit}}}}[/tex]