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Cleodine123
@Cleodine123
May 2019
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Bonjour svp aidez moi en maths c'est le dernier truc que j'arrive pas je suis bloquer ça fait 3jours svp
Construis un triangle ABC tel que : AB = 7 cm ; BAC = 65° ; ACB = 48° .
Explique ta démarche.
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trudelmichel
Verified answer
Bonjour,
la somme des angles d'un triangle fait 180°
Angles(BAC+ABC+ACB)=180°
65°+ABC+48°=180
113°+ABC=180°
ABC=180-113
ABC=67°
construction
1) tracez [AB]=7 cm
2)tracez l'angle BAy=65°
3)tracez l'angle ABz =67°
4)Ay et Bz se coupent en C
3 votes
Thanks 3
Cleodine123
Merci!
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Verified answer
Bonjour,la somme des angles d'un triangle fait 180°
Angles(BAC+ABC+ACB)=180°
65°+ABC+48°=180
113°+ABC=180°
ABC=180-113
ABC=67°
construction
1) tracez [AB]=7 cm
2)tracez l'angle BAy=65°
3)tracez l'angle ABz =67°
4)Ay et Bz se coupent en C