Q6 of 31 Page 107

Find the length of the side of a square whose area is 441 m2

Let the length of the given side of the square be x m

Now,


Area of square = (x)2


= 441 m2


x =


The square root of 441 can be calculated as:





















21



2



4̅ 4̅1̅


-4



41



41


41




0



x = 21


Hence, the length of the side of the square is 21 m


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