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102.13 Distance from the incentre of the tangential triangle of an obtuse triangle to the Euler line

Published online by Cambridge University Press:  08 February 2018

Sava Grozdev ,
Hiroshi Okumura  and
Deko Dekov
Sava Grozdev
Affiliation:
VUZF University of Finance, Business and Entrepreneurship, Gusla Street 1, 1618 Sofia, Bulgaria e-mail: sava.grozdev@gmail.com
Hiroshi Okumura
Affiliation:
Maebashi Gunma, 371-0123, Japan e-mail: hokmr@protonmail.com
Deko Dekov
Affiliation:
Zahari Knjazheski 81, 6000 Stara Zagora, Bulgaria e-mail: ddekov@ddekov.eu
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Type
Notes
Information
The Mathematical Gazette , Volume 102 , Issue 553 , March 2018 , pp. 133 - 135
Copyright
Copyright © Mathematical Association 2018 

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References

1. Grozdev, S. and Dekov, D., Barycentric coordinates: formula sheet, International Journal of Computer Discovered Mathematics 1(2016) no 2, pp.75–82. http://www.journal-1.eu/2016-2/Grozdev-Dekov-Barycentric-Coordinates-pp.75-82.pdf Google Scholar
2. Yiu, P., Introduction to the geometry of the triangle, 2013, http://math.fau.edu/Yiu/YIUIntroductionToTriangleGeometry130411.pdf Google Scholar
3. Weisstein, E. W., Tangential triangle, MathWorld - A Wolfram Web Resource, http://mathworld.wolfram.com/ Google Scholar
4. Leversha, G., The geometry of the triangle, UKMT (2013).Google Scholar
5. Kimberling, C., Encyclopedia of Triangle Centers - ETC, http://faculty.evansville.edu/ck6/encyclopedia/ETC.html Google Scholar