Q4 of 85 Page 138

Find the length of the side of a square whose area is 4489 sq.cm.

Given, area of square as 4489 sq.cm

We need to find out the length.


Now, we know that area = l × l


Area = l2


⇒ l2 = 4489


⇒ l =


=


⇒ l = 67 cm


Hence, the length of the side of a given square is 67cm


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