without doing calculation,find the number of digits in the square root of each of the following numbers. c.576
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24 is the root of 576
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Answer:
(i) Here, 64 contains two digits which is even.
Therefore, number of digits in square root = \frac{n}{2}=\frac{2}{2}=1
(ii) Here, 144 contains three digits which is odd.
Therefore, number of digits in square root = \frac{n+1}{2}=\frac{3+1}{2}=\frac{4}{2}=2
(iii) Here, 4489 contains four digits which is even.
Therefore, number of digits in square root = \frac{n}{2}=\frac{4}{2}=2
(iv) Here, 27225 contains five digits which is odd.
Therefore, number of digits in square root = \frac{n}{2}=\frac{5+1}{2}=3
(v) Here, 390625 contains six digits which is even.
Therefore, number of digits in square root = \frac{n}{2}=\frac{6}{2}=3
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