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Sagot :

Réponse:

1.

KMN : MN MK(6 cm) KN (3cm)

JMZ : MJ(7.5 cm) MZ(9 cm) ZJ

2.

ZJ : 9×3÷6= 4.5

MN : 6 × 7.5 ÷ 9 = 5

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