Best Answer

81*81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational Numbers cannot be expressed as a fraction.

🙏

🤨

😮

Study guides

☆☆☆☆☆

Q: Is 81 squared rational or irrational?

Write your answer...

Submit

Still have questions?

Related questions

81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

Rational.

Rational

28 squared is 784 which is a rational number

Rational.

Rational.

20 squared is 400 which is a rational number

No, it is rational.

No, it is rational.

Rational; 62 = 36. Any rational number that is squared is still rational.

They are rational.

It is a rational number as 9

No it is a rational number

Sometimes. eg the irrational number √2 squared is 2 which is rational (2 = 2/1) eg the irrational number √(√2) squared is √2 which is irrational.

-90 squared is rational - it is +8100. All perfect squares are not only rational but they are integers.

The square of any rational number is also rational.

No because pi still remains as an irrational when squared.

No because 102 squared is 10404 which is a rational number

No, it is rational.

The square of any rational number is also rational.

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

No because 25 is a rational number

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

No because 7 squared equals 49 which is a rational number but the square root of 7 is an irrational number

4.6 is rational.