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laurine4545
@laurine4545
January 2021
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Slt ses vraiment urgent alors merci d'avance 20pts a la clé
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patriciathierry
Plate-bande D et B:
aire = 6*10 = 60m²
P = 2(6+10)
= 2(16)
= 32m
après les schémas sont représentés sur un quadrillage , il suffit de retirer les carreaux .
plate bande C
aire=(6*10)- (4*3)= 60 - 12=48 m²
p =32 m (voir D et B)
plate bande A
aire =(6*10)-(2*2)-(2*1/4)=60-4-1/2=56-0.5=55.5m²
donc le jardinier peut entourer et semer son gazon sur la plate bande C
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Lista de comentários
aire = 6*10 = 60m²
P = 2(6+10)
= 2(16)
= 32m
après les schémas sont représentés sur un quadrillage , il suffit de retirer les carreaux .
plate bande C
aire=(6*10)- (4*3)= 60 - 12=48 m²
p =32 m (voir D et B)
plate bande A
aire =(6*10)-(2*2)-(2*1/4)=60-4-1/2=56-0.5=55.5m²
donc le jardinier peut entourer et semer son gazon sur la plate bande C