7*7 = 49 square units
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The area of a square is (side)2. Since side = 7 cm, then area = (7 cm)2 = 49 cm2 [square centimeters].
7.
If the area of a square is 49 square centimeters, the length of each of its sides are: 7 cm.
The side length would be 7. It is 7 because when you find the area of a square, the equation is s2=A. (s=side length A=area). When you only have the area of a square and you want to find the side length, you replace "A" with the area (in this case 49). Then you would have s2=49. To find the side length you would square both sides of the equation. √(s2)=√(49). 49 is perfect square so it's not too difficult to find out the answer. You would be left with s=7. Therefore the side length is 7. Step by step: s2=A s2=49 inches2 √(s2)=√(49) s=7 inches2
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!