Question

Find the square root of the following number using long division method
4.721

Answer 1

Rs 76 then how much was contributed by Geeta?

Answer 2

Refer to the attachment for the solution in long division method.

Final answer: $\sqrt{4.721}=2.172...$

• Remember that for digits after the decimal point, we can take a pair of 0s whenever necessary.

• The rule is same as for only integral digits. We have to keep doubling the quotient each time.

Another way:

$\quad\sqrt{4.721}$

$=\sqrt{\dfrac{4721}{1000}}$

$=\sqrt{\dfrac{47210}{10000}}$

$=\dfrac{\sqrt{47210}}{100}$

$=\dfrac{217.27...}{100}$

$=2.1727...$

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