Réponse :
(BC)//(DE)
thales
AC/AE=AB/AD
20/AE=30/45
AE = (20*45)/30=30
CE = AE-AC
CE = 30-20 = 10m
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Réponse :
(BC)//(DE)
thales
AC/AE=AB/AD
20/AE=30/45
AE = (20*45)/30=30
CE = AE-AC
CE = 30-20 = 10m