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Subjects>Math>Other Math

Is the square root of 20 rational?

Updated: 4/28/2022

Wiki User

∙ 10y ago

Best Answer

Try taking the square root. The square root of a positive integer can only be:

* A whole number, in which case it is of course rational, or

* Irrational.

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∙ 10y ago

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Continue Learning about Other Math

Is the square root of 1000 rational?

No, the square root of 1000 is not rational.

Is square root of 4 rational?

The square root of 4 is 2. 2 is a rational number so they square root of 4 is rational.

Is the square root of 20 is rational or irrational?

42 is 16, less than 20 52 is 25, more than 20. so, 20 is not a perfect square, and does not have an integral square root. But, the square root of any integer is either an integer itself, or irrational. So, square root 20 is irrational

Is the square root of 4 irrational or rational?

It is rational. The root of a perfect square, such as 4, is rational; the root of any positive integer that is not a perfect square is an irrational number.

Is the square root of 4.1 a rational or irrational number?

[ square root of (4.1) ] is irrational. But [ square root of (4) ] is rational.

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Is the square root of 20 a rational number or irational?

The square root of 20 is an irrational number

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Is the square root of 16 over 20 rational?

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The square root of 4 is 2. 2 is a rational number so they square root of 4 is rational.

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It is rational. The root of a perfect square, such as 4, is rational; the root of any positive integer that is not a perfect square is an irrational number.

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