Hung, Tran Quang A generalization of the Simson line using two isogonal conjugate points. (English) Zbl 1513.51025 Int. J. Geom. 11, No. 3, 41-47 (2022). MSC: 51M04 51-03 PDFBibTeX XMLCite \textit{T. Q. Hung}, Int. J. Geom. 11, No. 3, 41--47 (2022; Zbl 1513.51025) Full Text: Link
Hung, Tran Quang; Duong, Nguyen Thi Thuy A generalization of Feuerbach’s theorem. (English) Zbl 1513.51026 Int. J. Geom. 10, No. 1, 74-78 (2021). MSC: 51M04 51-03 PDFBibTeX XMLCite \textit{T. Q. Hung} and \textit{N. T. T. Duong}, Int. J. Geom. 10, No. 1, 74--78 (2021; Zbl 1513.51026) Full Text: Link
Hung, Tran Quang Extending a theorem of van Aubel to the simplex. (English) Zbl 1485.51011 J. Geom. Graph. 25, No. 2, 253-263 (2021). Reviewer: Cătălin Barbu (Bačau) MSC: 51M04 51N20 PDFBibTeX XMLCite \textit{T. Q. Hung}, J. Geom. Graph. 25, No. 2, 253--263 (2021; Zbl 1485.51011) Full Text: Link
Hung, Tran Quang; Duong, Nguyen Thi Thuy Generalizations of Fagnano’s problem. (English) Zbl 1477.51009 J. Geom. Graph. 25, No. 1, 061-069 (2021). Reviewer: Victor V. Pambuccian (Glendale) MSC: 51M04 51M16 PDFBibTeX XMLCite \textit{T. Q. Hung} and \textit{N. T. T. Duong}, J. Geom. Graph. 25, No. 1, 061--069 (2021; Zbl 1477.51009) Full Text: Link
Hung, Tran Quang; González, Luis Two generalizations of the Butterfly Theorem. arXiv:2012.08365 Preprint, arXiv:2012.08365 [math.HO] (2020). MSC: 51M04 51N20 BibTeX Cite \textit{T. Q. Hung} and \textit{L. González}, ``Two generalizations of the Butterfly Theorem'', Preprint, arXiv:2012.08365 [math.HO] (2020) Full Text: arXiv OA License
Hung, Tran Quang A direct trigonometric proof of Morley’s theorem. (English) Zbl 1449.51012 Int. J. Geom. 8, No. 2, 46-48 (2019). MSC: 51M04 51N20 PDFBibTeX XMLCite \textit{T. Q. Hung}, Int. J. Geom. 8, No. 2, 46--48 (2019; Zbl 1449.51012) Full Text: Link
Hung, Tran Quang Feuerbach’s theorem on right triangle with an extension. (English) Zbl 1404.51011 Int. J. Geom. 6, No. 2, 103-108 (2017). Reviewer: Sándor Nagydobai Kiss (Satu Mare) MSC: 51M04 51M25 PDFBibTeX XMLCite \textit{T. Q. Hung}, Int. J. Geom. 6, No. 2, 103--108 (2017; Zbl 1404.51011) Full Text: Link
Hung, Tran Quang Another simple construction of the golden ratio in an isosceles triangle. (English) Zbl 1368.51014 Forum Geom. 17, 287-288 (2017). MSC: 51M04 51M15 PDFBibTeX XMLCite \textit{T. Q. Hung}, Forum Geom. 17, 287--288 (2017; Zbl 1368.51014) Full Text: Link
Hung, Tran Quang Another simple construction of the golden section with equilateral triangles. (English) Zbl 1362.51027 Forum Geom. 17, 47-48 (2017). MSC: 51M15 51M04 PDFBibTeX XMLCite \textit{T. Q. Hung}, Forum Geom. 17, 47--48 (2017; Zbl 1362.51027) Full Text: Link
Hung, Tran Quang A simple synthetic proof of Lemoine’s theorem. (English) Zbl 1362.51008 Forum Geom. 17, 93-95 (2017). MSC: 51M04 51M15 PDFBibTeX XMLCite \textit{T. Q. Hung}, Forum Geom. 17, 93--95 (2017; Zbl 1362.51008) Full Text: Link
Hung, Tran Quang Euler line in the golden rectangle. (English) Zbl 1362.51026 Forum Geom. 16, 371-372 (2016). MSC: 51M15 51M04 PDFBibTeX XMLCite \textit{T. Q. Hung}, Forum Geom. 16, 371--372 (2016; Zbl 1362.51026) Full Text: Link
Hung, Tran Quang Two more pairs of Archimedean circles in the arbelos. (English) Zbl 1306.51007 Forum Geom. 14, 249-251 (2014). MSC: 51M04 51M15 PDFBibTeX XMLCite \textit{T. Q. Hung}, Forum Geom. 14, 249--251 (2014; Zbl 1306.51007) Full Text: Link