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Geometry and Discrete Math Links

  1. Oct 9, 2004 #1
    Would anyone happen to have some links which briefly explain some of the laws in geometry and/or discrete math? At the moment, i am looking for a summary of the Properties of Circles .

    Thank you for being as helpful as you always are.

    I found MathWorld, although i can not find properties of circles section. :confused: link
    Last edited by a moderator: Oct 9, 2004
  2. jcsd
  3. Oct 10, 2004 #2
    No one?

  4. Oct 10, 2004 #3
  5. Oct 10, 2004 #4
    What are some general rules regarding a tangent which lies on two points; these two points are each on a different (sized circle), and the two circles are overlapping each other (intersecting at two points).
  6. Oct 10, 2004 #5
    The only one I know of (though there may be more) is that the chord drawn from the two points of intersection of the circles bisects the common external tangent.

    Hope that helps! :)
  7. Oct 10, 2004 #6
    So if the two points of intersection are connected, and are extended to meet the common tangent, the tangent will be bisected?
  8. Oct 11, 2004 #7
    Yes, that's correct.
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