Answer :
Let "s" be the side of the square then:
perimeter = 4s
area = s²
2s² = 4s
s² = 2s
s² - 2s = 0
s(s-2) = 0
s = 0 ∅
or
s -2 = 0
s = 2
perimeter = 4s
area = s²
2s² = 4s
s² = 2s
s² - 2s = 0
s(s-2) = 0
s = 0 ∅
or
s -2 = 0
s = 2