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Juju143
@Juju143
May 2019
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Bonjour,
Calculer l'aire d'un rectangle ABCD de largeur racine carré de 7 - racine carré de 5cm et de longueur racine carré 7 + racine carré de 5
Pouvez vous m'aider merci d'avance
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Verified answer
Bonjour,
A =L*l(√7-√5)(√7+√5) =
(a-b)(a+b) =
a²-b² = 7-5 =
2cm²
ou √7*√7 + √7*√5 -√5*√7-√5*√5 =
7+√35-√35-5 = 2
A = 2cm²
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Verified answer
Bonjour,A =L*l(√7-√5)(√7+√5) =
(a-b)(a+b) =
a²-b² = 7-5 =
2cm²
ou √7*√7 + √7*√5 -√5*√7-√5*√5 =
7+√35-√35-5 = 2
A = 2cm²