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Geometry Theorems and Formulas

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

Home » Olympiad Section » Geometry » Geometry Theorems and Formulas

306 Topics • Page 1 of 7 • 1, 2, 3, 4, 5, 6, 7 Next

Announcements			Author	Replies	Views	Last Post
		Kiran Kedlaya's Geometry Unbound	rrusczyk	8	7679	Fri Jan 02, 2009 6:49 am #H34N1

Topics		Author	Replies	Views	Last Post
Stickies
	Geometry using complex numers [ Goto page: 1, 2 ]	Xixas	20	8052	Mon Oct 19, 2009 4:45 am hqthao
	Vector method in geometry	haduyhung	15	5963	Sun Aug 02, 2009 7:18 am jayme
	Harmonic Division	pohoatza	12	5538	Wed Jul 01, 2009 10:33 am Ivob
	Projective geometry	perfect_radio	2	3920	Sun Feb 22, 2009 9:12 am murgi
	Book/ebook recommendations on advanced Euclidean Geometry	marko avila	7	5611	Wed Jan 21, 2009 12:58 am apratimdefermat
	Inversion with respect to a circle every where	nntrkien	19	8615	Tue Dec 18, 2007 2:15 am stergiu
	Poles and Polars	billzhao	7	5617	Thu Jul 26, 2007 9:18 pm Virgil Nicula
	directed length, angle, and area [feedback wanted! - darij]	pkerichang	1	3076	Wed Mar 14, 2007 5:47 am darij grinberg
	Affine transformations	Pascual2005	1	3092	Mon Jun 28, 2004 2:38 am grobber
Topics
	collinearity, concyclity, three lines meet at a point	Anthony2	0	41	Yesterday, at 6:54 am Anthony2
	Brianchon's theorem	nurbolat aktau ktl	1	134	Sat Oct 24, 2009 4:43 am Dr Sonnhard Graubner
	I need..	cnyd	0	132	Fri Oct 09, 2009 1:08 pm cnyd
	Complex plane Gergonne and Nagel points	Scorpius	6	364	Mon Sep 14, 2009 6:58 am Scorpius
	Isodynamic points	Arne	2	2114	Sun Sep 06, 2009 9:53 pm radko
	Sondat's Theorem Johnson 1929,	Leonhard Euler	3	894	Sun Aug 30, 2009 1:23 am jayme
	help	dushanggaolou	0	174	Wed Aug 26, 2009 1:25 am dushanggaolou
	cyclic polygons q	mathemonster	0	200	Sun Aug 23, 2009 7:54 am mathemonster
	Complex interpretation need help	Scorpius	3	291	Sat Aug 22, 2009 12:29 pm Nukular
	Circumcenter formula	Bugi	0	349	Wed Aug 19, 2009 1:52 am Bugi
	Question about Sondat's Theorem	limes123	2	398	Fri Jul 24, 2009 3:03 am limes123
	Help me about the barycentrics	gb2124	3	359	Sun Jul 19, 2009 1:46 am gb2124
	Pelletier's point	jayme	1	322	Sat Jul 18, 2009 12:19 pm yetti
	Urquhart's theorem	frankvista	6	633	Fri Jul 17, 2009 11:00 am vittasko
	Euclidean geometry with hyperbola	NextPeace	0	293	Mon Jul 06, 2009 6:59 am NextPeace
	Magic Geometry	jayme	0	345	Sun Jul 05, 2009 4:56 am jayme
	Help me with barycentric coordinates	gb2124	1	319	Sat Jul 04, 2009 8:47 pm luisgeometria
	Vertices of an equilateral triangle Please help	Scorpius	2	407	Sat Jul 04, 2009 6:50 pm Tiger100
	Reim's theorem generalized	jayme	0	384	Thu Jul 02, 2009 1:40 am jayme
	Cyclic quadrilateral	Ivob	2	354	Wed Jul 01, 2009 10:30 am Ivob
	Cristea's transversal theorem	Tiger100	2	558	Sun Jun 28, 2009 5:00 am jayme
	Gossard theorem by PM request	yetti	2	554	Thu Jun 25, 2009 8:59 am luisgeometria
	An interesting colinearity	April	6	1528	Fri Jun 19, 2009 1:03 am Moonmathpi496
	The Steiner theorem about isogonal cevians actually due to Pappos	darij grinberg	2	3403	Sun Jun 14, 2009 6:27 am dgreenb801
	Projective transformation textbook?	ywl	0	307	Sat Jun 13, 2009 11:22 pm ywl
	confusing question	Scorpius	0	290	Sat Jun 13, 2009 10:25 am Scorpius
	Isodynamic points are inverse wrt circumcircle	conceive	2	932	Sat Jun 06, 2009 3:10 am jayme
	nice intersection Vecten !?	balan razvan	1	762	Sat Jun 06, 2009 2:47 am jayme
	Someone please clarify !!A doubt regarding Orthology Centres	Agr_94_Math	5	568	Fri Jun 05, 2009 5:04 am vittasko
	Geometry with an Attitude	oswaldo	1	901	Wed Jun 03, 2009 1:02 pm oswaldo
	Symmetric of OI wrt the contact and median triangles	jayme	0	350	Wed Jun 03, 2009 3:19 am jayme
	Kariya´s theorem	Max D.R.	5	733	Sat May 30, 2009 8:38 am Max D.R.
	Barycenters mAterial	Agr_94_Math	1	353	Fri May 29, 2009 10:32 pm jayme
	Computing Distances with barycentric coordinates Specially posted to April.	luisgeometria	2	652	Thu May 21, 2009 5:22 pm luisgeometria
	trigonometry	shibin.george	5	474	Thu May 21, 2009 3:10 am mathiee
	Circles [proof of Feuerbach's theorem] Karl Wilhelm Feuerbach 1822	XMG	8	6283	Tue May 12, 2009 9:12 am jayme
	Proof of 4-Color Theorem	MathZen
	An unlikely concurrence, revisited and generalized	jayme	0	364	Wed May 06, 2009 1:20 am jayme
	Napoleon's theorem	Rijul saini	7	1286	Sat May 02, 2009 2:59 am balan razvan
	A famous theorem	chien than	4	2319	Wed Apr 29, 2009 9:35 am sunken rock
	Barycentric Coordinate	NextPeace	4	1024	Tue Apr 21, 2009 2:53 pm luisgeometria
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306 Topics • Page 1 of 7 • 1, 2, 3, 4, 5, 6, 7 Next

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