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  1. The difference of perimeter and diameter of a circle is X unit. The diameter of the circle is
    1. X
      		unit
      π - 1
    2. X
      		unit
      π + 1
    3. X
      		unit
      π
    4. X
      		 - 1units
      π - 1
Correct Option: A

If the diameter of the circle be d units, then
π d – d = X
⇒ d(π – 1) = X

⇒ d =
X
 units
π - 1


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