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sarah6211054
@sarah6211054
June 2021
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Aide moi svp c'est hurgent c'est pour cette après-midi
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winner123
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Bonjour
1) aire plafond
7.8 x 4.7 =
36.66 m²
nombre de L de peinture = 33.66 : 5 = 7.332 donc
8 L
2) surface murs
surface murs = murs moins ouvertures
murs = 2 ( 4.70 x 2.5) + 2 ( 7.8 x 2.5) = 23.5 + 39 = 62.5
ouvertures = ( 2.1 x 0.9) + 3 ( 2.1 x 2.4) = 1.89 + 15.12 = 17.014
62.5 - 17.01 =
45. 49 m²
Quantité de peinture pour les murs = 45.49 : 5 = 9.09 soit
10 L
Quantité de peinture nécessaire = 8 + 10 = 18 L soit 6 pots
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sarah6211054
Merci beaucoup
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Verified answer
Bonjour1) aire plafond
7.8 x 4.7 = 36.66 m²
nombre de L de peinture = 33.66 : 5 = 7.332 donc 8 L
2) surface murs
surface murs = murs moins ouvertures
murs = 2 ( 4.70 x 2.5) + 2 ( 7.8 x 2.5) = 23.5 + 39 = 62.5
ouvertures = ( 2.1 x 0.9) + 3 ( 2.1 x 2.4) = 1.89 + 15.12 = 17.014
62.5 - 17.01 = 45. 49 m²
Quantité de peinture pour les murs = 45.49 : 5 = 9.09 soit 10 L
Quantité de peinture nécessaire = 8 + 10 = 18 L soit 6 pots