January 2023 0 18 Report
3) Calcul d'aire (Diff. 2 ; 6 min)

Soit un triangle CDE isocèle en D de base [CE] et de hauteur
[CH]. On donne CH = 5 cm et sin CDH = 0,4.
Calculer l'aire de ce triangle.

Aidez moi svp ❤️
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