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Déterminer l'angle orienté (AD; AF).
Mathematics
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Voici la résolution de l'exercice.
- Justifions que .
Step 1: Déterminer l'angle orienté .
ABCD est un carré de sens direct, donc .
ABF est un triangle équilatéral direct, donc .
En utilisant la relation de Chasles pour les angles orientés:
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