Subject		Posts	Last Post
	Trois céviennes concourantes (encore !) (820 views) by jelobreuil	21	11/10/2021 05:39PM Last Post by pappus
	Centre du cercle inscrit et droite d'Euler (12007 views)   (Pages: 1 2) by Gilles	58	11/10/2021 02:45PM Last Post by Ludwig
	des points alignés quatre par quatre (68 views) by jelobreuil	3	11/10/2021 01:21PM Last Post by jelobreuil
	Un concours particulier (125 views) by jelobreuil	4	11/09/2021 10:01PM Last Post by jelobreuil
	Pseudo-droites de Simson (77 views) by mathisse	4	11/09/2021 02:59PM Last Post by mathisse
	Un problème de Chasles sur les coniques (82 views) by etanche	2	11/09/2021 10:21AM Last Post by Bouzar
	Un problème à l'ancienne de Mathieu Stewart (209 views) by Jean-Louis Ayme	6	11/09/2021 08:55AM Last Post by Chaurien
	Demande exos : coniques (680 views) by Homo Topi	21	11/08/2021 09:27PM Last Post by etanche
	Géométries, etc. (98 views) by soland	2	11/08/2021 06:22PM Last Post by soland
	Terminologie : "cleavers and splitters" (200 views) by yan2	10	11/08/2021 05:59PM Last Post by pldx1
	Une relation avec les deux points de Fermat (223 views) by Bouzar	10	11/08/2021 05:35PM Last Post by Bouzar
	Trois centres alignés (334 views) by jelobreuil	13	11/07/2021 11:37PM Last Post by jelobreuil
	Symétrie centrale démonstrations (221 views) by Stanislas75	11	11/07/2021 04:02PM Last Post by Dom
	Un lieu relatif à un quadrilatère (178 views) by Jean-Louis Ayme	5	11/05/2021 05:57PM Last Post by pldx1
	Un curieux résultat (1514 views) by Jean-Louis Ayme	27	11/03/2021 10:12AM Last Post by Jean-Louis Ayme
	Un problème italien (484 views) by Bouzar	12	11/03/2021 10:06AM Last Post by Jean-Louis Ayme
	Un simple problème (189 views) by Jean-Louis Ayme	3	11/02/2021 11:49AM Last Post by pldx1
	Une étude sur les cercles de Tucker (145 views) by Jean-Louis Ayme	3	11/02/2021 11:25AM Last Post by pldx1
	Droite de Simson perpendiculaire (355 views) by Bouzar	8	11/01/2021 08:46AM Last Post by pldx1
	Minimisation des sommes des écarts de pts 3D (263 views) by Lancey	3	10/29/2021 12:15PM Last Post by Lancey
	Angles égaux (462 views) by blackawn	15	10/29/2021 11:00AM Last Post by pldx1
	Le coin des olympiades n°3 (1036 views) by Bouzar	14	10/28/2021 05:26PM Last Post by pldx1
	Parallélogramme et transversale (901 views) by Piteux_gore	25	10/28/2021 02:39PM Last Post by pappus
	Intersection de deux ellipses (267 views) by Yopery	5	10/28/2021 11:29AM Last Post by Yopery
	Un lieu géométrique, de Jules Verne ? (443 views) by Chaurien	13	10/27/2021 11:23PM Last Post by Chaurien
	Bissectrice et coniques circonscrites (299 views) by jelobreuil	11	10/27/2021 09:45PM Last Post by jelobreuil
	Balle, bracelets, bague (1289 views) by P.	32	10/27/2021 03:20PM Last Post by pappus
	René Goormaghtigh et sa déroutante relation (258 views) by Jean-Louis Ayme	6	10/27/2021 09:27AM Last Post by pldx1
	Question sur la revue "Forum Geometricorum" (84 views) by etanche	1	10/27/2021 08:48AM Last Post by etanche
	Dimension et espaces projectifs (362 views) by Sn	8	10/26/2021 10:36AM Last Post by pldx1
	Construction d'un point P sous une condition (500 views) by Jean-Louis Ayme	14	10/26/2021 10:12AM Last Post by pldx1
	Une conjecture (977 views) by Jean-Louis Ayme	14	10/26/2021 07:56AM Last Post by Jean-Louis Ayme
	Intersection de deux paraboles homofocales (214 views) by Piteux_gore	4	10/25/2021 09:58PM Last Post by Rescassol
	Normale à l'ellipse (431 views) by Piteux_gore	10	10/25/2021 01:55PM Last Post by pappus
	Distance d'un point à une droite (X 1880) (412 views) by Piteux_gore	9	10/25/2021 09:18AM Last Post by pldx1
	Lieu dans l'espace (182 views) by Piteux_gore	3	10/24/2021 01:17PM Last Post by Piteux_gore
	Construction d'un carré (234 views) by Piteux_gore	5	10/23/2021 12:16PM Last Post by soland
	Le cercle de Taylor (92 views) by Jean-Louis Ayme	1	10/23/2021 08:27AM Last Post by Jean-Louis Ayme
	Deux isogonales (394 views) by Jean-Louis Ayme	10	10/23/2021 08:19AM Last Post by Jean-Louis Ayme
	Question sur exercice droites-sphère (161 views) by Piteux_gore	3	10/21/2021 05:47PM Last Post by gerard0
	Triangles équilatéraux (1329 views) by lorentz	28	10/21/2021 05:00PM Last Post by pappus
	La cyclocévienne (6056 views) by pappus	18	10/21/2021 08:22AM Last Post by Jean-Louis Ayme
	Construction d'irrationnels (210 views) by Piteux_gore	4	10/20/2021 05:26PM Last Post by Neogramme
	Égalité de triangles (270 views) by charles H	5	10/20/2021 02:54PM Last Post by poulbot
	Un point limite ou de Poncelet (783 views) by Jean-Louis Ayme	9	10/20/2021 10:42AM Last Post by Jean-Louis Ayme
	Un exercice issu d’une figure de collège (2325 views) by Yannguyen	29	10/20/2021 10:37AM Last Post by Jean-Louis Ayme
	Prix de beauté (1406 views) by Pouzergues	17	10/19/2021 01:12PM Last Post by Jean-Louis Ayme
	Variété lisse et compacte (307 views) by evariste21	5	10/18/2021 11:37PM Last Post by marco
	Translation (exposition Borel) (147 views) by marco	2	10/18/2021 09:49PM Last Post by marco
	Théorème de Reim (121 views) by mathisse	1	10/18/2021 07:01PM Last Post by mathisse
	Grand oral X-1963 (6282 views) by Blue\c/	18	10/18/2021 12:48PM Last Post by pappus
	En hommage à Leibniz (11563 views)   (Pages: 1 2 3) by Pouzergues	94	10/18/2021 12:00PM Last Post by Pouzergues
	Tores de Hopf (24483 views)   (Pages: 1 2) by Saturne	74	10/16/2021 07:04PM Last Post by Saturne
	Ensemble compliqué (339 views) by paco	6	10/16/2021 02:17PM Last Post by JLT
	Le théorème de Ménélaüs appliqué au trapèze (528 views) by djelloul sebaa	5	10/16/2021 01:40AM Last Post by Tonm
	Point de Fermat et droite d'Euler (472 views) by Bouzar	6	10/13/2021 11:25AM Last Post by Rescassol
	Un axe radical passant par G (739 views) by jelobreuil	12	10/12/2021 09:54PM Last Post by jelobreuil
	Découplage d'une équation de trigo (536 views) by tcoq	10	10/12/2021 08:00PM Last Post by gerard0
	Le théorème de Thalès appliqué aux trapèzes (900 views) by djelloul sebaa	9	10/11/2021 08:34PM Last Post by djelloul sebaa
	Une relation avec des aires (591 views) by Bouzar	9	10/09/2021 06:13PM Last Post by Chaurien
	Géométrie projective pour agrégatifs (1518 views) by pldx1	5	10/09/2021 02:29PM Last Post by poulbot
	Démonstration d'une égalité contenant nabla (284 views) by DickVulcain	2	10/06/2021 06:02PM Last Post by P.
	Géométrie axiomatique et distance (693 views) by malavita	11	10/06/2021 11:47AM Last Post by malavita
	Transformations de Möbius (29218 views)   (Pages: 1 ... 9 10 11) by odile0502	434	10/06/2021 09:45AM Last Post by pldx1