All you need to do to find this is realize two things:
The way to get the answer then is to take the square root of the area, and multiply it by four. We're told that the area is 25, so the area is 4 × √25, which equals 4 × 5, which equals 20.
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If the perimeter of a square is 30 cm, each side is 7.5 cm and the area is 56.25 sq cm. For a square to have an area of 30 sq cm each side would have to be 5.48cm.
Since the sides of a square are equal, the area of a square is the length of one side squared, therefore: (25)1/2 = 5 = length of one side. Multiply this by four since there are four sides to a square, and that will give you the perimeter = 20
The perimeter is not going to have sq units. If the perimeter of a square is 15 units then the area would be 14.0625units squared.
9 sq cm
It is 48 cm.