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Kawell
@Kawell
April 2019
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EXERCICE DE MATHEMATIQUES 3e
Un rectangle a pour longueur x + 4 et pour largeur 2x.
Ecrire son périmètre p(x) et son aire A(x) en fonction de x
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anylor
Verified answer
Périmètre = (longueur + largeur)*2
2* [ (
x + 4) +( 2x)] = 2( 3x +4) = 6x +8
aire = L* l =(x + 4) *( 2x) = 2x² + 8x
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Verified answer
Périmètre = (longueur + largeur)*22* [ (x + 4) +( 2x)] = 2( 3x +4) = 6x +8
aire = L* l =(x + 4) *( 2x) = 2x² + 8x