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honorine007
@honorine007
January 2021
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bonjour , j ai reussi à faire l exercice numéro 1 j ai besoin d aide pour l exercice numéro 2 pour calculer les longueurs.... merci d avance !!!
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telephone16
Tu appliques Pythagore
Dans le triangle ABD, on a AB² = BD² - AD²
AB² = √5,9 ² - √2,5²
AB² = √34,81 - √6,25 =
AB² = √28,56 ≈ 5,3 cm
Dans le triangle BCD, on a CD² = BD² + BC²
√6,3² = √5,9² - BC²
√39,69 - √34,81 = BC² = 4,88
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au secours ......... :/ merci d avance !!! !
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honorine007
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bonsoir!!! vraiment besoin d aide !! merci beaucoup !!
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honorine007
January 2021 | 0 Respostas
bonsoir :) au secours!!!! help merci!!!
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honorine007
January 2021 | 0 Respostas
Bonsoir, Besoin d aide pour cet exercice :) merci beaucoup !!!
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Dans le triangle ABD, on a AB² = BD² - AD²
AB² = √5,9 ² - √2,5²
AB² = √34,81 - √6,25 =
AB² = √28,56 ≈ 5,3 cm
Dans le triangle BCD, on a CD² = BD² + BC²
√6,3² = √5,9² - BC²
√39,69 - √34,81 = BC² = 4,88