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quynhanhluong16
2 năm trước
Tam giác ABC vuông tại A có AC =2AB . Lấy điểm E treen cạnh AC sao cho AB = AE . Trên tia đối của tia EB lấy ddieeemr D sao cho EB = ED a ) Chứng minh tam giác ABE = tam giác CDE b ) So sánh ^ABE = ^CBE
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