Answer:
Perimeter: 36 cm
Explanation:
Area = length x width
Width = x
Length 2x
Area = 72 cm
Area = x (2x) = 2x^2
2x^2 = 72 cm
x^2 = 72/2
x = sqrt 36 = 6
Width = 6
Length = 12
Perimeter = 2(6) + 2(12) = 12 + 24 = 36 cm
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