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Sagot :

Bonjour !

(AB) // (DE)

Donc : CE/CE = CA/CD = AB/DE

Soit : 3,2/5 = CA/4,6 = AB/4,4

CA = 3,2×4,6/5 = 14,72/5

CA = 2,94

AB => CA/4,6 = AB/4,

=> 2,94/4,6 =AB/4,4

AB = 2,94 x 4,4 /4,6 = 12,95 / 4,6

AB = 2,81

Bonne continuation.

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