A square has an area of 49 square units. Find the side length and perimeter of the square.

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To find the side length of the square, we can take the square root of the area. Since the area is given as 49 square units, the side length would be the square root of 49, which is 7 units.

To find the perimeter of the square, we can multiply the side length by 4, since a square has four equal sides. In this case, the side length is 7 units, so the perimeter would be 4 multiplied by 7, which is 28 units.