Generalizations involving maltitudes

Michael De Villiers

Type: Article

Publication Date: 1999-07-01

Citations: 16

DOI: https://doi.org/10.1080/002073999287806

International Journal of Mathematical Education in Science and Technology - View

Similar Works

Action	Title	Year	Authors
+	Proofs of Quadrilateral Curiosities	2025
+	A Cyclic Quadrilateral Concurrency	2008
+	Discussions: Quadrangles with the Brocard Property	1926	P. S. Wagner
+	On the altitudes of quadrilaterals	2005	Biagio Micale Mario Pennisi
+	3020. The maltitudes of a cyclic quadrilateral	1962	R. E. Lester
+	Exploring cyclic quadrilaterals with perpendicular diagonals	2015	Alfínio Flores
+	Conway's Nightmare: Brahmagupta and Butterflies	2022	Richard Evan Schwartz
+	A unifying generalization of Turnbull's theorem	1993	Michael De Villiers
+	A note on coloured quadrangulations	1980	Kenneth A. Berman
+	Spreads and ovoids in finite generalized quadrangles	1994	J. A. Thas S. E. Payne
+	A Note on Circumscriptible Cyclic Quadrilaterals	1965	L. Carlitz
+	A Note on Circumscriptible Cyclic Quadrilaterals	1965	L. Carlitz
+	Orthocentres et aires	2009	Louis Rivoallan
+	A fallacy involving similar quadrilaterals	2014	Nick Lord
+	Combinatorial and symmetry threads	2010	Peter Hilton Jean Pedersen
+	Hidden Properties of the Equilateral Triangle	2016	Moshe Stupel Ruth Segal Alfínio Flores
+	Quadrilateral Curiosities	2025
+	An Integer Sequence Motivated by Generalized Quadrangles.	2015	Brian G. Kronenthal
+	A proof without words for angle bisectors of right triangles	2024	Moshe Stupel Jay M. Jahangiri
+	Extensions of Vittas’ Theorem	2024	Nikolaos Dergiades Quang Hung Tran

Action	Title	Year	Authors
+	Using dynamic geometry to stimulate students to provide proofs	2007	Arsalan Wares
+	Homothetic transformations and geometric loci: properties of triangles and quadrilaterals	2016	Maria Flavia Mammana
+	Students' Early Mathematical Representation Knowledge: The Effects of Emphasizing Single or Multiple Perspectives of the Rational Number Domain in Problem Solving	2005	Bryan Moseley
+	Non-traditional theorems unfolding	2014	Arsalan Wares
+	Using dynamic geometry to expand mathematics teachers’ understanding of proof	2004	Michael De Villiers
+	Quadrilaterals of triangle centres	2008	Maria Flavia Mammana Biagio Micale
+	Conjectures pertaining to repeated partitioning of a triangle	2008	Arsalan Wares
+	Properties of Valtitudes and Vaxes of a Convex Quadrilateral	2012	Maria Flavia Mammana Biagio Micale Mario Pennisi
+	Using dynamic geometry to explore non-traditional theorems	2010	Arsalan Wares
+	On the altitudes of quadrilaterals	2005	Biagio Micale Mario Pennisi

Action	Title	Year	Authors
+	Geometry Turned On: Dynamic Software in Learning, Teaching and Research	1998	Jean Pedersen James C. King Doris Schattschneider
+	Introduction to Geometry	1969	H. S. M. Coxeter
+	Introduction to geometry.	1962	A. Pabst
+	GEOMETRIC TRANSFORMATIONS I	1962	Allen Shields
+	Geometric Transformations II	1968	I. M. Yaglom Allen Shields
+	Geometric Transformations II	1968	I. Yaglom
+	The Penguin dictionary of curious and interesting geometry	1992	David Graham Wells