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Isebastien2003
@Isebastien2003
April 2019
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Re Trace un rectangle ABCD tel que AB=4cm et AD=6,3cm.
La c'est facile mais ma prof rajoute la question :
combien mesure [BC] (demonstration)
C'est pour lundi
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maudmarine
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Trace un rectangle ABCD tel que AB=4cm et AD=6,3cm.
Combien mesure [BC]
?
[BC] est la diagonale du rectangle ABCD
Donc :
D² = L² + l²
D² = 4² + 6,3²
D² = 16 + 39,69
D² = 55,69
D = √55,69
D = 7,46 cm
[BC] mesure : 7,46 cm
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Bonjour pour demain j'ai le 89 a faire j'essaie depuis 20bonnes minute mais je n'arrive pas merci de bien vouloir m'aider.
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Bonjours a tous je suis blocker sur cette exercice.Il faut faire une demonstration sur les deux questions.Merci d'avance.
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Verified answer
Trace un rectangle ABCD tel que AB=4cm et AD=6,3cm.Combien mesure [BC] ?
[BC] est la diagonale du rectangle ABCD
Donc :
D² = L² + l²
D² = 4² + 6,3²
D² = 16 + 39,69
D² = 55,69
D = √55,69
D = 7,46 cm
[BC] mesure : 7,46 cm