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celeste60
@celeste60
June 2021
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Le professeur de Joan a demandé de démontrer que le triangle BECn'est pas rectangle.
Que peut-on penser de la manière dont Joan rédige la solution ?
On vérifie l'égalité de Pythagore pour le triangle BEC:
BE°2=CB°2+CE°2
44°2=36°2+27°2
1 936 =1 296 + 729
1 936 = 2 025
Donc le triangle BEC n'est pas rectangle .
petit rappel : (°2) correspond à : au carré
merci d'avance pour votre aide <3
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