To find the perimeter, you would first find the square root of 7 (because it is a square). This will give you about 2.645751311... Then you would multiply this by 4 (4 sides). The answer would then be 10.58300524... or 10.583 rounded to the nearest thousandth.
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7*7 = 49 square cm
For a square, the area is the length of a side squared and the perimeter is 4 times the length. If the area is 49, then the length of a side is 7. The perimeter is then 4 times 7, or 28.
Perimeter=28 ft Area=49 square ft
the square root of 49 is 7, so 7*4= 28 units
If a square has an area of 151.29cm2 its perimeter is: 49.2 cm