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Sagot :

Réponse :

rouge = 185 x 2 = 370cm

orange = 2(110 x 2 + 105 x 2) + (165 x 2 + 130 x 2) = 2 x 430 + 590 = 1450cm

violet = 2 x 180 + 100 = 360 + 100 = 460cm

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