12 x 12 = 144
So 12 + 12 + 12 + 12 = 48
as a square has four sides
so answer is 48cm
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A square with an area of 144cm2 has sides of 12cm which is the square root of 144cm. 12cm x 12cm gives 144cm2.
The area of a square is S2 where S is the length of one side. So the length of the side of the square is the SQROOT(AREA) or SQROOT(144cm2), which is 12 cm
The area of a square is a function of the perimeter of the square.
If the area of a square is 12 the perimeter is: 13.86
The area of a square with perimeter 28cm is: 49 cm2