Question

Find length of each side of a square whose area is 441 CM square.

Answer 1

Step-by-step explanation:

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Let us take lenght of each side be x.

Then, it's area = a^2.

But it's given 441cm^2.

So, Atq, a^2=441cm^2.

or a= $\sqrt{441cm^2}$

Therefore a= 21cm

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Answer 2

21

Step-by-step explanation:

the answer is √441=21 by the process of square root