Sagot :
bonjour
E
D
3m 600
A 20m B C
lac falaise
thalès
AB/AC = BD/CE
20/AC=3/600
20 = 3/600xAC
AC = 20:0,05
AC=4000
et
BC = AC-AB = 4000-20 = 3980m soit 3,980km
bonjour
E
D
3m 600
A 20m B C
lac falaise
thalès
AB/AC = BD/CE
20/AC=3/600
20 = 3/600xAC
AC = 20:0,05
AC=4000
et
BC = AC-AB = 4000-20 = 3980m soit 3,980km