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ltnd811
2 năm trước
Cho Tam giác có Ab=6cm , Ac=9cm.Trên cạnh Ab lấy điểm D sao cho AD=4cm.Kẻ DE//Bc .Tính độ dài các đoạn thẳng Ae , Ce Vẽ hộ mình cả hình nữa nhé thank mn
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