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Question

A circle has a radius of 5 cm. The nature of its perimeter is.

A
Irrational
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B
Rational
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C
Integer
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Solution

The correct option is A Irrational
Perimeter of a circle = Circumference of the circle.
= 2πr
=10π
since π is an irrational number, 10π will also be an irrational number.

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