2505. In maxillary 1st permanent molar, the 2 obtuse angles are________________? September 27, 2025 by Admin A. Mesiolingual and mesiofacial B. Mesiofacial and distolingual C. Distofacial and mesiolingual D. Distofacial and mesiofacial ✅ The correct answer is option C. Distofacial and mesiolingual.