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Q: Is the square of 81 a rational number?

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

No. The square root of 81 is 9, which is 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.

Yes. 81 is a:- Real number - Rational number - Integer - Natural number - Counting number - Square number - Odd number

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

Yes and it is also a square number because 9*9 = 81

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

Integer, rational, and real.

81 is a rational number

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

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

No. 81 is a rational number. An irrational number is a number with an endless amount of digits like pi or the square root of 2.

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