If the radius of a circle is a rational number, its area is given by a number which is:

Irrational

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Rational

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Integral

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A perfect square

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Solution

The correct option is A
Irrational

Since, $π$ is irrational and product of rational and irrational is irrational.

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A circle has an integral radius of 5 cm. Then the nature of the perimeter is ___.
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Square of an irrational number is always a rational number.

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