Which of the following is irrational

\sqrt{\frac{4}{9}}

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\frac{4}{5}

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\sqrt{7}

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\sqrt{81}

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Solution

The correct option is A $\sqrt{7}$
A $= \sqrt{\frac{4}{9}} = \frac{2}{3}$ Rational

B $= \frac{4}{5}$ Rational

C $= \sqrt{7}$ Irrational

D $= \sqrt{81} = 9$ Rational

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Similar questions

\sqrt{\frac{4}{9}}

\sqrt{\frac{12}{3}}

\sqrt{7}

\sqrt{81}

\sqrt{\frac{4}{9}}

\sqrt{\frac{4}{5}}

\sqrt{7}

\sqrt{81}

919829873987649876559876546987654

4

7

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