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Mathematical Education, 2009, Issue 4(52), Pages 2–10 (Mi mo121)  
Students and teachers of secondary school

Seven Geometric Problems

V. B. Drozdov
Full-text PDF (2393 kB)
Abstract: Let G be the mass center of a triangle, H be the orthocenter, and L be the center of the inscribed circle. The conditions for GH, GL, HL to be parallel o r / a n d orthogonal to a side of the triangle are analyzed. The exposition is based on vector approach.
Document Type: Popular science or education materials
Language: Russian
Citation: V. B. Drozdov, “Seven Geometric Problems”, Math. Ed., 2009, no. 4(52), 2–10
Citation in format AMSBIB
\Bibitem{Dro09}
\by V.~B.~Drozdov
\paper Seven Geometric Problems
\jour Math. Ed.
\yr 2009
\issue 4(52)
\pages 2--10
\mathnet{http://mi.mathnet.ru/mo121}
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