Sur le schéma ci-dessous, le point D symbolise la ville d'Arar (Arabie saoudite).
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On pourra faire pivoter la figure en cliquant dessus.
Sachant que \( \widehat{SCE} = 90 ° \), \( \widehat{ECD} = 31 ° \), \( \widehat{DCN} = 59 ° \) et \( \widehat{ABD} = 41 ° \), donner la longitude de la ville d'Arar (Arabie saoudite).
Exemples de format de réponses attendu : \(80°N\), \(60°S\), \(80°E\) ou \(20°O\)