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tunglam09
2 năm trước
Cho tam giác ABC với AC<AB.Trên tia đối của tia BC lấy điểm D sao cho BD =AB.Trên tia đối của tia CB lấy điểm E sao cho CE=AC .Vẽ các đoạn thẳng AD,AE a)hãy so sánh góc ADC và góc AEB b)Hãy so sánh các đoạn thẳng AD và AE
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