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99.20 A projective Simson line

  • Geoff Smith (a1)
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1.Leversha, G., The geometry of the triangle, (UKMT) 2013.
2.Hagge, K., Der Fuhrmannsche Kreis und der Brocardsche Kreis als Sonderfälle eines allgemeineren Kreises, Zeitschrift für Math. Unterricht 38 (1907) pp. 257269.
3.Bradley, C. J. and Bradley, J. T., Countless Simson line configurations, Math. Gaz. 80, (July 1996) pp. 314321.
4.Giering, O., Affine and projective generalization of Wallace lines, Journal for Geometry and Graphics, Vol 1 (1997), No. 2, pp. 119133.
5.Pech, P., On the Simson-Wallace theorem and its generalizations, Journal for Geometry and Graphics, Vol 9 (2005), No. 2, pp. 141153.
6.Altshiller-Court, N., College Geometry, (Dover) 2007.
7.Johnson, R., Advanced Euclidean geometry, (Dover) 2007.
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The Mathematical Gazette
  • ISSN: 0025-5572
  • EISSN: 2056-6328
  • URL: /core/journals/mathematical-gazette
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