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Emma54
@Emma54
April 2019
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Aidez moiiiii svp !
Exercice 52
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danielwenin
Verified answer
BC² = 3.1² - 2.5² = 3,36
BC = 1,833
DE/BC = 2/2,5 => DE = 1,833x 2/2,5 = 1,466
DE² = 2,1504
DE² + DA² = 6,1504
AE² = 5,76
donc AE² dofférent de AD² + DE² donc le triangle ADE n'est pas rectangle
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Verified answer
BC² = 3.1² - 2.5² = 3,36BC = 1,833
DE/BC = 2/2,5 => DE = 1,833x 2/2,5 = 1,466
DE² = 2,1504
DE² + DA² = 6,1504
AE² = 5,76
donc AE² dofférent de AD² + DE² donc le triangle ADE n'est pas rectangle