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Geometry Theorems and Formulas

Moderators: darij grinberg, N.T.TUAN, orl, pbornsztein, pohoatza, yetti

Home » Olympiad Section » Geometry » Geometry Theorems and Formulas

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Announcements			Author	Replies	Views	Last Post
		Kiran Kedlaya's Geometry Unbound	rrusczyk	8	6955	Fri Jan 02, 2009 6:49 am #H34N1

Topics		Author	Replies	Views	Last Post
Stickies
	Harmonic Division	pohoatza	12	4663	Wed Jul 01, 2009 10:33 am Ivob
	Projective geometry	perfect_radio	2	3520	Sun Feb 22, 2009 9:12 am murgi
	Book/ebook recommendations on advanced Euclidean Geometry	marko avila	7	4950	Wed Jan 21, 2009 12:58 am apratimdefermat
	Vector method in geometry	haduyhung	13	5001	Wed Jan 21, 2009 12:52 am apratimdefermat
	Inversion with respect to a circle every where	nntrkien	19	7907	Tue Dec 18, 2007 2:15 am stergiu
	Poles and Polars	billzhao	7	5157	Thu Jul 26, 2007 9:18 pm Virgil Nicula
	directed length, angle, and area [feedback wanted! - darij]	pkerichang	1	2751	Wed Mar 14, 2007 5:47 am darij grinberg
	Geometry using complex numers	Xixas	19	7295	Thu Sep 28, 2006 12:02 pm Rzeszut
	Affine transformations	Pascual2005	1	2780	Mon Jun 28, 2004 2:38 am grobber
Topics
	Vertices of an equilateral triangle Please help	Scorpius	1	76	Yesterday, at 11:00 am Scorpius
	Reim's theorem generalized	jayme	0	61	Thu Jul 02, 2009 1:40 am jayme
	Cyclic quadrilateral	Ivob	2	57	Wed Jul 01, 2009 10:30 am Ivob
	Cristea's transversal theorem	Tiger100	2	250	Sun Jun 28, 2009 5:00 am jayme
	Gossard theorem by PM request	yetti	2	209	Thu Jun 25, 2009 8:59 am luisgeometria
	An interesting colinearity	April	6	1178	Fri Jun 19, 2009 1:03 am Moonmathpi496
	The Steiner theorem about isogonal cevians actually due to Pappos	darij grinberg	2	2888	Sun Jun 14, 2009 6:27 am dgreenb801
	Projective transformation textbook?	ywl	0	69	Sat Jun 13, 2009 11:22 pm ywl
	confusing question	Scorpius	0	66	Sat Jun 13, 2009 10:25 am Scorpius
	Isodynamic points are inverse wrt circumcircle	conceive	2	615	Sat Jun 06, 2009 3:10 am jayme
	nice intersection Vecten !?	balan razvan	1	518	Sat Jun 06, 2009 2:47 am jayme
	Someone please clarify !!A doubt regarding Orthology Centres	Agr_94_Math	5	227	Fri Jun 05, 2009 5:04 am vittasko
	Geometry with an Attitude	oswaldo	1	594	Wed Jun 03, 2009 1:02 pm oswaldo
	Symmetric of OI wrt the contact and median triangles	jayme	0	96	Wed Jun 03, 2009 3:19 am jayme
	Kariya´s theorem	Max D.R.	5	387	Sat May 30, 2009 8:38 am Max D.R.
	Barycenters mAterial	Agr_94_Math	1	109	Fri May 29, 2009 10:32 pm jayme
	Computing Distances with barycentric coordinates Specially posted to April.	luisgeometria	2	308	Thu May 21, 2009 5:22 pm luisgeometria
	trigonometry	shibin.george	5	179	Thu May 21, 2009 3:10 am mathiee
	Circles [proof of Feuerbach's theorem] Karl Wilhelm Feuerbach 1822	XMG	8	5706	Tue May 12, 2009 9:12 am jayme
	Proof of 4-Color Theorem	MathZen
	An unlikely concurrence, revisited and generalized	jayme	0	142	Wed May 06, 2009 1:20 am jayme
	Napoleon's theorem	Rijul saini	7	902	Sat May 02, 2009 2:59 am balan razvan
	A famous theorem	chien than	4	1896	Wed Apr 29, 2009 9:35 am sunken rock
	Barycentric Coordinate	NextPeace	4	629	Tue Apr 21, 2009 2:53 pm luisgeometria
	Gauss + Miquel + Aubert [a. k. a. Steiner]	grobber	9	4156	Tue Apr 21, 2009 11:54 am balan razvan
	Area-preserving transformation	Sashsiam_2	1	183	Sun Apr 19, 2009 7:20 am nsato
	The Erdös-Mordell Inequality	Johann Peter Dirichlet	5	2629	Mon Apr 13, 2009 12:06 pm luisgeometria
	Areal coordinates of the orthocenter	Laplace	1	251	Sat Apr 11, 2009 10:09 am luisgeometria
	A new mixtilinear incircle adventure III mixtilinear incircle and Thébault's circles	jayme	0	207	Sun Apr 05, 2009 1:31 am jayme
	Regular Simplex Existence	bambaman	4	336	Sun Mar 22, 2009 10:25 pm bambaman
	Poincare theorem	BG Yoda	3	371	Wed Mar 18, 2009 3:39 pm luisgeometria
	Casey theorem on five circles (generalized Ptolemy theorem)	alekk	3	1246	Tue Mar 17, 2009 12:56 am BG Yoda
	euler line	aadil	1	299	Thu Mar 12, 2009 3:37 am Agr_94_Math
	poles and polars wrt conic	Leonhard Euler	0	252	Sun Mar 08, 2009 2:01 am Leonhard Euler
	A new mixtilinear incircles adventure II own	jayme	0	219	Wed Mar 04, 2009 2:52 am jayme
	Sondat's Theorem Johnson 1929,	Leonhard Euler	2	511	Fri Feb 27, 2009 8:39 pm yetti
	directed segment,angle	Leonhard Euler	0	268	Tue Feb 17, 2009 3:55 am Leonhard Euler
	A new mixtilinear incircle adventure 1	jayme	0	358	Wed Feb 04, 2009 3:07 am jayme
	length of the given parabola length of the given parabola	math_dn12	1	319	Sun Feb 01, 2009 7:18 am puuhikki
	my second inequality	Nguyen The Ky Cuong	2	403	Fri Jan 30, 2009 9:15 pm TRAN THAI HUNG
	Brocard	fallinlovewithmaths	1	490	Sun Jan 18, 2009 2:53 am mathtam
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