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mylan9698
2 năm trước
Cho tam giác ABC có AB <AC ,đường trung tuyến AM.Trên tia đối của tia MA lấy điểm D sao cho MD=MA. a)C/m AB=CD,AB//CD b)So sánh góc MAB và góc MAC c)So sánh góc AMB và góc AMC Giúp con bò này câu c) zới.Mọi người ơi!!!!
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