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Q: Is 20 a square number or not?

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20 is a not perfect square.

The square root of 20 is an irrational number

The square root of 20 is: ± 4.472136The square root of 20 is ± 4.472136 (to 7 sf).A square root of a number is the number that when multiplied by itself equals the given number.

20 is not the square of an integer, the square root of 20 is approximately equal to 4.472.

Well, a square number is the answer to a number multiplied by itself. So, what you'd have to do is multiply 20*20, and the answer is 400.

20 is a not perfect square.

If you mean the square root is 20, the answer is 400. If you mean the square root of 20, the answer is about 4.47.

20*20 = 400

The only square number of an integer between 20 and 30 is 25, which is equal to the square of Â±5.

20

It is: 4+16 = 20

16 is an even number from 10 to 20, and its square roots are -4 and +4.

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