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Is the square of 81 a rational number?

Updated: 4/28/2022
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6y ago

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

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Q: Is the square of 81 a rational number?
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Related questions

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.


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 81 rational?

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


Is the number 81 rational?

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


Is sqrt 81 a irrational number?

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


Is 81 a rational number?

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


Which type of number is square root of 81?

Integer, rational, and real.


Is the square root of 81 a rational number?

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


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).


Is 81 a irrational 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.


Is the square root of -81 rational or irrational?

Since it is the square root of a negative number, it is actually imaginary, neither rational nor irrational. It is equal to 9i, or 9 times whatever the square root of negative one is.square root of -81 = square root of 81 times i = 9i