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phamthihue.c3tnt
2 năm trước
Câu 5: Xét các khẳng định sau. Tìm khẳng định đúng. Ba đường trung trực của một tam giác đồng qui tại một điểm gọi là: A. Trọng tâm của tam giác B. Tâm đường tròn ngoại tiếp C. Trực tâm của tam giác D. Tâm đường tròn nội tiếp
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