No, it is in between 3 and 4
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No. A natural number is a whole number, that is, no digits after the decimal point. Calculate the square root of 12 on a calculator, and you will see that it is not a whole number.
12, -12
130
Yes, the square root of 48 is an irrational number. This is because 48 can be simplified to (4 \times 12), and since the square root of 4 is a whole number (2), we can express (\sqrt{48}) as (2\sqrt{12}). The square root of 12, however, is not a perfect square and cannot be simplified to a whole number, making (\sqrt{48}) irrational.
sqrt(156) = 12.489996 (rounded)Rounded to the nearest whole number, that's 12.