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Sagot :

MINGUK0914

Réponse :

la figure 1 perimetre= 2(7X+13)= 14x+26

la fig 2 perimetre= 3x+6+3x+6+5x+10+7x+15+4x+8= 22x+45

la figure 1 aires= (7X+5)x8= 56X+40

la figure 2 aires= (3x+6)x(2x+4)+(3x+6)x(7x+14)= 6x^2+24x+24+21x^2+84x+84= 27x^2+ 106x+106

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