Sagot :
bonjour
BD/BA = BE/BC = DE/AC
BD/7 = 5 /6 ⇔ BD = 35/6 ≅ 5.83
6 / AC = 5/6 ⇔ AC = 36/5 = 7.2 cm
Comme AC//ED alors d’après thales :
BE/BC = BD/BA =ED/AC
5/6=BD/7 = 6/AC
BD = 5*7/6 =5,83
BD= 5,83 cm
AC = 6*6/5 = 7,2
AC =7,2 cm
BE/BC = BD/BA =ED/AC
5/6=BD/7 = 6/AC
BD = 5*7/6 =5,83
BD= 5,83 cm
AC = 6*6/5 = 7,2
AC =7,2 cm