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Olivana
@Olivana
May 2019
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Bonjour à tous pouvez-vous svp m’aider pour un dm maths niveau 4ème cordialement ps il y a la photo avec l’enoncé
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nguyenso9
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Bonjour,
Soit x, le côté d'un carré jaune,
Perimetre rectangle rouge : (30 - 2x + 24 - 2x)/2 = (54 - 4x)/2
Perimetre des 4 carrés jaunes : 4 * 4x = 16x
(54 - 4x)/2 = 16x
27 - 2x = 16x
27 = 14x
27/14 = x
Oui, le souhait d'Elsa est réalisable
1 votes
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Verified answer
Bonjour,Soit x, le côté d'un carré jaune,
Perimetre rectangle rouge : (30 - 2x + 24 - 2x)/2 = (54 - 4x)/2
Perimetre des 4 carrés jaunes : 4 * 4x = 16x
(54 - 4x)/2 = 16x
27 - 2x = 16x
27 = 14x
27/14 = x
Oui, le souhait d'Elsa est réalisable