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Formula for diameter of a circle

  1. May 5, 2006 #1
    How do you get the diameter of a circle from the area alone? Can this be done?
  2. jcsd
  3. May 5, 2006 #2


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    Sure. [tex]d = 2\sqrt{\frac{A}{\pi}}[/tex] where d is the diameter and A is the area.
  4. May 5, 2006 #3
    excellent! thank you Curious
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