Cho tam giac ABC . Tren canh AB lay diem M , tren canh AC lay diem N sao cho AM = \(\frac{1}{3}\)AB , NC = \(\frac{2}{3}\)AC . Dien tich tam giac ABC gap may lan dien tich tam giac AMN ?
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cho tam giac abc tren canh ab lay diem m,tren canh ac lay diem n so cho am bang 1/3 ab,nc=2/3 ac.hoi dien tich tam giac abc gap may lan tam giac amn
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cho hinh tam giac ABC .Tren canh AB lay diem M tren canh AC lay diem N sao cho AM=1/3 AB NC=2/3 AC.Dien tich hinh tam giac ABC gapdien tich hinh tam giac AMN so lan la
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