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Salut59
@Salut59
April 2019
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Aider moi svp..!!!!! :'(
merci.. bon weekend..
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winner123
Verified answer
Bonjour
Aire de tout le terrain
Longueur = 120 + x
Largeur = 40 + x
Aire = (120 + x) ( 40 + x)
Aire = 4 800 + 120 x + 40 x + x²
Aire = x² + 160 x + 4 800
Aire carré 1 = 40² = 1 600 m²
aire carré 2 = x²
aire colorée = x² + 160 x + 4800 - 1 600 - x²
aire = 160 x + 3 200
pour x = 20, aire = 3200 + 3200 = 6 400 m²
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Salut59
mdt
Salut59
ok dsl
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Verified answer
BonjourAire de tout le terrain
Longueur = 120 + x
Largeur = 40 + x
Aire = (120 + x) ( 40 + x)
Aire = 4 800 + 120 x + 40 x + x²
Aire = x² + 160 x + 4 800
Aire carré 1 = 40² = 1 600 m²
aire carré 2 = x²
aire colorée = x² + 160 x + 4800 - 1 600 - x²
aire = 160 x + 3 200
pour x = 20, aire = 3200 + 3200 = 6 400 m²