Perimeter = 4*7 = 28 cm
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Perimeter of square = 4*length of side = 4*12.5 in = 50 inches.
Well, well, well, aren't we dealing with a smarty pants here! If the area of the square is 49 cm squared, then each side of the square measures 7 cm (since 7 x 7 = 49). The perimeter of a square is just the sum of all its sides, so in this case, the perimeter would be 4 x 7 = 28 cm. Voila!
To find the perimeter of a square, you need to know the length of one side. Since the area of the square is given as 22500 ft², you can find the length of one side by taking the square root of the area. The square root of 22500 is 150, so each side of the square is 150 ft. The perimeter of a square is calculated by multiplying the length of one side by 4, so the perimeter of this square would be 600 ft.
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Hint: the perimeter of a square is the sum of its four sides, so each side is one-quarter of the perimeter...