34 Voici un problème : 2 cm
a
Pour quelle valeur
de a l'aire de cette
figure vaut-elle
100 cm2 ?
8 cm
1. Parmi les équations suivantes, indiquer celles
qui modélisent ce problème.
a. 2(a + 4) + 16 = 100 b. 4a + 16 = 50
c. 8(2a + 2) = 100 d. 32 + 8a = 100
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