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New points that belong to the nine-point circle

  • David Fraivert (a1)


In the present paper, we show that the point of intersection of the bimedians of a cyclic quadrilateral belongs to the nine-point circle (Euler’s circle) of the triangle with one vertex at the point of intersection of the quadrilateral’s diagonals and the other vertices at the points of intersection of the extensions of its pairs of opposite sides.



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New points that belong to the nine-point circle

  • David Fraivert (a1)


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