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zohrahamtine
@zohrahamtine
March 2021
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Bonjour,j'aurais besoin d'aide svp svp...
Exercice 2.
Le plan est muni d'un repère orthonormé (0;1; J). Soient A(-1; 2), B(4; 7) et C(5:0) trois
points du plan
1 Tracer le repère (0:1; J) et placer les points A, B et C.
2 (a) Calculer les distances AB, BC et AC
(b) Que peut-on en déduire sur le triangle ABC.
3. (a) Calculer les coordonnées du milieu K du segment (AC). Placer le point K
(b) Calculer les coordonnées du point D(ID; YD) symétrique du point B par rapport à K.
Placer le point D.
4. (a) ABCD est-il un parallélogramme ? Justifier
(b) ABCD est-il un losange?
Justifier.
(c) ABCD est-il un carré ? Justifier.
MERCIII
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