Forum Geometricorum
Volume 9 (2009)

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1. Eisso J. Atzema, On n-sections and reciprocal quadrilaterals, 1--17.
2. Steve Butler, The lost daughters of Gergonne, 19--26.
3. Clark Kimberling, Mappings associated with vertex triangles, 27--39.
4. Allan J. MacLeod, On integer relations between the area and perimeter of Heron triangles, 41--46.
5. Jan Vonk, The Feuerbach point and reflections of the Euler line, 47--55.
6. Zvonko Cerin, Rings of squares around orthologic triangles, 57--80.
7. Paris Pamfilos, On the Newton line of a quadrilateral, 81--98.
8. Cristinel Mortici, Folding a square to identify two adjacent sides, 99--107.
9. Harold Connelly, An extension of triangle constructions from located points, 109--112.
10. Nicusor Minculete, Characterizations of a tangential quadrilateral, 113--118.
11. Cosmin Pohoata, A note on the anticomplements of the Fermat points, 119--123.
12. Paul Yiu, Heptagonal triangles and their companions, 125--148.
13. Shao-Cheng Liu, The symmedian point and concurrent antiparallel images, 149--154.
14. Robert Olah-Gal and Jozsef Sandor, On trigonometric proofs of the Steiner-Lehmus theorem, 155--160.
15. Harold Connelly and Beata Randrianantoanina, An angle bisector parallel applied to triangle construction, 161--163.
16. Peter Yff, A family of quartics associated with a triangle, 165--171.
17. Giovanni Lucca, Circle chains inside a circular segment, 173--179.
18. David Graham Searby, On three circles, 181--193.
19. Dan Ismailescu and Adam Vojdany, Class preserving dissections of convex quadrilaterals, 195--211.
20. Dimitris Vartziotis and Joachim Wipper, On the construction of regular polygons and generalized Napoleon vertices, 213--223.
21. Nikolaos Dergiades, A simple barycentric coordinates formula, 225--228.
22. Paris Pamfilos, Conic homographies and bitangent pencils, 229--257.
23. Nikolas Dergiades and Juan Carlos Salazar, Some triangle centers associated with the tritangent circles, 259--270.
24. Nikolai Ivanov Beluhov, Ten concurrent Euler lines, 271--274.
25. Jason Zimba, On the possibility of trigonometric proofs of the Pythagorean theorem, 275--278.
26. Alexey V. Ustinov, On the construction of a triangle from the feet of its angle bisectors, 279--280.
27. John F. Goehl, Jr, Pythagorean triangles with square of perimeter equal to an integer multiple of area, 281--282.
28. Shao-Cheng Liu, Trilinear polars and antiparallels, 283--290.
29. Dan Marinescu, Mihai Monea, Mihai Opincariu, and Marian Stroe, A sequence of triangles and geometric inequalities, 291--295.
30. Francisco Javier Garcia Capitan, Trilinear polars of Brocardians, 297--300.
31. Antreas P. Hatzipolakis and Paul Yiu, Reflections in triangle geometry, 301--348.