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Segement of Circle =Ellipse

  1. Dec 10, 2013 #1
    1. The problem statement, all variables and given/known data

    Is it true that the if you slice a circle into two segments, you can think of one of the pieces as being half an ellipse?

    2. Relevant equations

    3. The attempt at a solution

    Not sure, I was just thinking about this! Not really any idea how to proceed to a solution, or how I can apply the definition of an ellipse (fixed distance from foci..) to solve.
  2. jcsd
  3. Dec 10, 2013 #2


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    Science Advisor
    Homework Helper

    You can think of a circle as an ellipse with both foci at the same point, if that's what you mean.
  4. Dec 10, 2013 #3


    Staff: Mentor

    In general, the answer is no. Circles and ellipses have different curvature, although you can think of a circle as being a special case of an ellipse (one with both foci at the same place, the center).
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