Some similarities associated with pedals - Jean-Pierre Ehrmann and Floor van Lamoen LTTK TEZ xin giới thiệu với bạn đọc yêu thích tạp chí Hình...
The Stammler circles - Jean-Pierre Ehrmann and Floor van Lamoen We investigate circles intercepting chords of specified lengths on the sidelines...
On some remarkable concurrences - Charles Thas In Bruce Shawyer proved the following result. At the midpoint of each side of a triangle, we...
Geometry and group structures of some cubics - Fred Lang We review the group structure of a cubic in the projective complex plane and give group...
The perimeter of a cevian triangle - Nicolaos Dergiades We show that the cevian triangles of certain triangle centers have perimeters not...
An elementary proof of the isoperimetric inequality - Nicolaos Dergiades LTTK TEZ xin giới thiệu với bạn đọc yêu thích tạp chí Hình học...
Napoleon-like configurations and sequences of triangles - Barukh Ziv We consider the sequences of triangles where each triangle is formed out of...
Loci related to variable flanks - Zvonko Cerin Let BR_1R_2C, CR_3R_4A, AR_5R_6B be rectangles build on sides of a triangle ABC such that the...
Paper-folding and Euler's theorem revisited - Benedetto Scimemi Given three points O, G, I, we give a simple construction by paper-folding for a...
A Conic Through Six Triangle Centers - Lawrence Evans LTTK TEZ xin giới thiệu với bạn đọc yêu thích tạp chí Hình học Geometricorum một bài viết...
A generalization of the Tucker circles - Peter Yff LTTK TEZ xin giới thiệu với bạn đọc yêu thích tạp chí Hình học Geometricorum một bài viết cực...
A rapid construction of some triangle centers - Lawrence Evans LTTK TEZ xin giới thiệu với bạn đọc yêu thích tạp chí Hình học Geometricorum một...
A simple construction of the golden section - Kurt Hofstetter LTTK TEZ xin giới thiệu với bạn đọc yêu thích tạp chí Hình học Geometricorum một...
The Lemoine cubic and its generalizations - Bernard Gibert For a given triangle, the Lemoine cubic is the locus of points whose cevian lines...
The Napoleon configuration - Gilles Boute It is an elementary fact in triangle geometry that the two Napoleon triangles are equilateral and have...
Equilateral chordal triangles - Floor van Lamoen When a circle intersects each of the sidelines of a triangle in two points, we can pair the...
ollineation, conjugacies, and cubics - Clark Kimberling LTTK TEZ xin giới thiệu với bạn đọc yêu thích tạp chí Hình học Geometricorum một bài viết...
Congruent inscribed rectangles - Jean-Pierre Ehrmann We solve the construction problem of an interior point P in a given triangle ABC with...
Some concurrencies from Tucker hexagons - Floor van Lamoen We present some concurrencies in the figure of Tucker hexagons together with the...
A pair of Kiepert hyperbolas - Jean-Pierre Ehrmann The solution of a locus problem of Hatzipolakis can be expressed in terms of a simple...
