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100.24 A synthetic proof of Dao's generalisation of the Simson line theorem

Published online by Cambridge University Press:  14 June 2016

Nguyen Le Phuoc  and
Nguyen Chuong Chi
Nguyen Le Phuoc
Affiliation:
501 CT7G, Duong Noi, Le Van Luong Stree, Ha Noi, Viet Nam e-mail: Nguyenlephuoc2006@gmail.com
Nguyen Chuong Chi
Affiliation:
Rowna 4 str., 05-075 Warsaw, Poland e-mail: Nguyenchuongchi@yahoo.com
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Abstract

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Type
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Information
The Mathematical Gazette , Volume 100 , Issue 548 , July 2016 , pp. 341 - 345
Copyright
Copyright © Mathematical Association 2016 

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References

1.Coxeter, H. S. M. and Greitzer, S.L., Geometry revisited, Math. Assoc. America, 1967.CrossRefGoogle Scholar
2.Bradley, C. J. and Bradley, J. T., Countless Simson line configurations, Math. Gaz., 80 (July 1996) pp. 314–321.CrossRefGoogle Scholar
3.Giering, O., Affine and projective generalization of Wallace lines, Journal for Geometry and Graphics 1 (1997), No. 2, pp. 119–133.Google Scholar
4.Pech, P., On the Simson-Wallace theorem and its generalizations, Journal for Geometry and Graphics, 9 (2005), No. 2, pp. 141–153.Google Scholar
5.Dao, T. O., Advanced plane geometry, message 1781, September 26, 2014, available at https://groups.yahoo.com/neo/groups/AdvancedPlaneGeometry/conversations/messages/1781Google Scholar
6.Bogomolny, A., A generalization of the Simson line, available at http://www.cut-the-knot.org/m/Geometry/GeneralizationSimson.shtmlGoogle Scholar