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thangpttl
2 năm trước
11. Biết số đo góc xOy bằng 100 thì là góc: 12. Biết đường tròn (O; 4cm) thì đường kính của đường tròn là: 4. Lớp 6A có 40 học sinh chia thành 3 loại: giỏi, khá và trung bình. Số học sinh trung bình chiếm 35% số học sinh cả lớp, số học sinh khá bằng số học sinh còn lại.Tính số học sinh mỗi loại.
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