bonjour
AED est rectangle en E
AD² = 6² + 7² = 36 + 49 = 85
AD = √85 ≅9.2 cm
CD² = 5² - 3 ² = 25 - 9 = 16
CD = √16 = 4
donc AC = ≅ 9.2 - 4 ≅ 5.2
AB² = 3² + ≅ 5.2² = 9 + 27.04 ≅ 36.04
AB = √36.04 ≅ 6 cm
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bonjour
AED est rectangle en E
AD² = 6² + 7² = 36 + 49 = 85
AD = √85 ≅9.2 cm
CD² = 5² - 3 ² = 25 - 9 = 16
CD = √16 = 4
donc AC = ≅ 9.2 - 4 ≅ 5.2
AB² = 3² + ≅ 5.2² = 9 + 27.04 ≅ 36.04
AB = √36.04 ≅ 6 cm