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The square root of 81 is 9 - a natural number and all natural numbers are rational numbers.

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Related Questions

Is the square of 81 a rational number?

The square root of 81 is 9 which is a rational number


Is the square root 81 rational or irrational?

The square root of 81 is 9, which is a whole number. Since all whole numbers are considered rational numbers (as they can be expressed as a fraction with a denominator of 1), the square root of 81 is rational.


Is the square root of 81a rational number?

Yes. The square root of 81 is 9, which is a rational number.


Is the root of 81 an irrational number?

No. The square root of 81 is 9, which is a rational number.


Is the square root of of 81 over negative three irrational?

No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).


Which type of number is square root of 81?

Integer, rational, and real.


Is sqrt 81 a irrational number?

No because the square root of 81 is 9 which is a rational number


Is the square root of 81 a rational number?

Yes. It's +9 and -9. They're both rational.


What is the value of n for which square root of n be a rational number?

n is a square of a rational number. For example, 4 or 81, or 2.25 or 36/25.n is a square of a rational number. For example, 4 or 81, or 2.25 or 36/25.n is a square of a rational number. For example, 4 or 81, or 2.25 or 36/25.n is a square of a rational number. For example, 4 or 81, or 2.25 or 36/25.


Square root of 81?

81 is the square root and 9.5 is under root.


Is the square root of 1000 rational?

No, the square root of 1000 is not rational.


Is the square root of 37 rational?

is the square root of 3 rational