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20782Re: [EMHL] Re: perspective centers

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  • Antreas Hatzipolakis
    Feb 1 2:01 AM
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      2012/2/1 Alexey Zaslavsky <zasl@...>


      > Let A_0, B_0, C_0 be the midpoints of sides BC, CA, AB; P be an arbitrary
      > point on the Euler line of triangle ABC and A_1, B_1, C_1 be the
      > projections
      > of circumcenter O to AP, BP, CP. Then A_0A_1, B_0B_1, C_0C_1 concur.
      >
      >
      >
      ... and which is the locus of the point of concurrence, as P moves on the
      Euler line?

      APH


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