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Question

If circumference and area of a circle are numerically equal, then find its diameter.


  1. 4

  2. 2π

  3. 2

  4. 8


Solution

The correct option is A

4


Given: Area of the circle = Circumference of the circle
πr2=2πr ,where r is the radius of the circle.
r2=2r
r=2
2r=4
The diameter of the given circle is 4 units long.

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