6. Soit IJK un triangle isocèle en I tel que IJ = 6cm et u JKI = 30 (a

IJ = 6cm
d
J KI = 30 .
J K < 12cm
d
KJI
d
J I K
AB = 5cm AC = 7cm BC = 8cm
CM < 8cm CN < 9cm
BP < 5cm P C < 7cm
b
E= 50
b
F= 60
b
G= 70
EM =EG
EN =EF
AB = 5cm AC = 7cm BC = 8cm