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Sagot :

Réponse :

Triangle ABC = 3,4 x 3,7: 2 = 6,29 cm²

Triangle EDF=  2,5 x 2,2:2 = 2,75 cm²

Triangle GHI = 4,4 x 1,3:2 = 2,86 cm²

Triangle MLK= 2,8 x 2:2 = 2,8 cm²

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