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julieleagym
@julieleagym
January 2021
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Bonjour pouvez vous m'aidez pour cet exercice svp merci beaucoup d'avance !
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aur70
Bonjour
1/ aire de ABC : 20*h/2=10h
aire de IJKL : 2h*h=2h²
2/ 10h=2h² ⇔ 2h²-10h=0 ⇔10h-2h²=0
3/ 10h-2h²=0 ⇔ 2h(5-h)=0 ⇔ h=0 ou h=5
on conservera juste h=5
1 votes
Thanks 1
julieleagym
mrc bcp !
julieleagym
ça veut dire quoi les feches " ⇔" sil vous plait ?
aur70
bonjour équivaut à
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Lista de comentários
1/ aire de ABC : 20*h/2=10h
aire de IJKL : 2h*h=2h²
2/ 10h=2h² ⇔ 2h²-10h=0 ⇔10h-2h²=0
3/ 10h-2h²=0 ⇔ 2h(5-h)=0 ⇔ h=0 ou h=5
on conservera juste h=5