Answer:
[tex]P=60[/tex]
Step-by-step explanation:
[tex]Greetings![/tex]
[tex]~I'm~Isabelle~Williams~and~I~will~be~answering~your~question![/tex]
[tex]To~find~the~perimeter~of~a~square~we~use~the~formula~which~is:[/tex]
[tex]\boxed{P=4\times the~side}[/tex]
[tex]So,~in~our~case~we~have~the~side~as~15.~now,~we~multiply~that~with~4.[/tex]
[tex]We~get:[/tex]
[tex]P=~4\times 15[/tex]
[tex]P=60[/tex]
[tex]Thus,~the~perimeter~of~this~square~is~60cm.[/tex]
[tex]Hope~this~helps!~and~have~an~amazing~day~ahead![/tex]
[tex]-Isabelle~Williams[/tex]