Irrational Numbers

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What is an irrational number?

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An irrational number is a number that cannot be expressed as a fraction of two integers. Its decimal representation is non-repeating and non-terminating.

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Give an example of an irrational number.

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How do you estimate the square root of a number?

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To estimate the square root of a number, find two perfect squares it lies between and use them to approximate its value.

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What is the square root of 12?

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The square root of 12 is approximately 3.46.

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What is the relationship between rational and irrational numbers?

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Rational numbers can be expressed as fractions, while irrational numbers cannot. Together, they make up the real numbers.

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