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What type of number is \(\pi\)?

Answer and explanation

Correct answer: Irrational number

The decimal expansion of \(\pi\) is non‑terminating and non‑repeating, so it cannot be expressed as a ratio of two integers — this is the definition of an irrational number. Moreover, \(\pi\) is known to be transcendental (not a root of any nonzero polynomial with integer coefficients). Option D (terminating decimal) is incorrect because terminating decimals have a finite number of decimal places (e.g. 0.5, 2.75), whereas \(\pi\) does not. Options B and C are wrong because integers and whole numbers are finite, discrete values and do not describe \(\pi\). Exam tip: check the decimal expansion properties — non‑terminating and non‑repeating implies irrational.

Related tags

PiIrrational-NumbersReal-NumbersTranscendental-NumberIrrational Numbers And Real NumbersPolynomialsMathematicsClass 10 Mcq

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