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Precilia1
@Precilia1
April 2019
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ac = 12 cm , ab = 13 cm ,bc = 5 cm et ar = 9 cm demontrer quelle triangle ABC est rectangle
Aidez moi svp j'ai pas compris merci d'avance
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Commentaires (2)
Bonsoir,
Tu testes la relation de Pythagore.
AB² = 13² = 169
AC² = 12² = 144
BC² = 5² = 25
169 = 144 + 25
Donc AB² = AC² + BC².
Par la réciproque du théorème de Pythagore, le triangle ABC est rectangle et [AB] est l'hypoténuse.
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precilia1
Mercii pour hier
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Tu testes la relation de Pythagore.
AB² = 13² = 169
AC² = 12² = 144
BC² = 5² = 25
169 = 144 + 25
Donc AB² = AC² + BC².
Par la réciproque du théorème de Pythagore, le triangle ABC est rectangle et [AB] est l'hypoténuse.