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True or false

  1. Aug 22, 2006 #1
    If a circle has an area of t square units and radius r, then a circle with an area of 2t square units has radius 2r.
  2. jcsd
  3. Aug 22, 2006 #2


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    What do you think?

    The area of a circle of radius R is [itex]\pi R^2[/itex].
    Have you tried playing with this formula to find the answer?
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