Bonsoir
AD/AC = AE/AB = DE/CB
5/6 = DE / 4
⇔ DE = 20 /6 = 10/ 3
AD = 6 cm
6/AC = 5 /6
⇔ AC = 36 / 5 = 7.2
5 + 6 + 4 + 7.2 + 6 + 10./3
= 30.2 + 10/3
= 90.6 /3 + 10/3
= 100 .6 /3
Réponse:
tu fait h× b 11 ×4 ÷2 .. .......
