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Similar Quadrilaterals

  1. Jan 8, 2008 #1
    Given a quadrilateral ABCD,
    Prove that the quadrilateral formed by the intersections other than the vertices A, B, C & D
    of the circles with diameter AB, BC, CD & DA
    is similar to the quadrilaterar ABCD.

    What is the relation of similarity?
  2. jcsd
  3. Jan 9, 2008 #2
    similarity means just the same up to scale hence all angles are the same but the lenghts are different.
  4. Jan 9, 2008 #3


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    Science Advisor

    The lengths of the sides scale together.
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