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Sagot :

BENJAMINNATHANGENTY

Réponse :

Explications étape par étape

Exercice 4:

1) Pour x=2.

Figure 1:

= (2+1 + 2+1) - 1x1

= 9-1

= 8 cm carré

Figure 2

= (2+2)x2

= 4x2

= 8 cm carré

Pour x=8

= (8+1 + 8+1) - 8x1

= 18 - 8

= 10

Figure 2

= (8+2)x8

= 16 x 8

= 144 cm carré

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