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From: Samuel DEVULDER <samuel_dot_devulder@laposte_dot_net.invalid>
Newsgroups: fr.sci.maths
Subject: =?UTF-8?Q?Re=3a_Probl=c3=a8me_de_maths?=
Date: Sun, 19 Dec 2021 20:05:43 +0100
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Le 19/12/2021 à 16:02, Michel Talon a écrit :
> 
> Il s'agit évidemment d'un quadrilatère "gauche"

Dans ce cas la réponse est là: https://tinyurl.com/epe8bexb

sam.