Which of the following is an irrational number?

I believe the answer is A. the square root of 0.036

Also, here's a definition that may help you:
In mathematics, an irrational number is a real number that cannot be expressed as a ratio of integers, i.e. as a fraction. Therefore, irrational numbers, when written as decimal numbers, do not terminate, nor do they repeat.

Hope this helps!

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