Question 112296
Remember the area of a square is {{{A=s^2}}} where s is the side length. So if A=25, then {{{25=s^2}}}. Now take the square root of both sides to get {{{s=5}}}


Now take the side length of 5 and multiply it by 4 (since there are 4 sides in a square)


So 

{{{P=4*s=4*5=20}}}


So the perimeter is 20 cm