Cho tqm giac abc co b=c ke ah vuong goc bc h thuoc bc lay diem d tren tia doi cua tia cb lay diem e sao cho bd =ce chung minh A)ab =ac B) tam giac abd

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Cho tqm giac abc co b=c ke ah vuong goc bc h thuoc bc lay diem d tren tia doi cua tia cb lay diem e sao cho bd =ce chung minh
A)ab =ac
B) tam giac abd=ace
C) tam giac acd =tam giac abe
D) ah la tia phan giac cua goc dae
E) ke bk song song ad ci song song ae chung minh ba duong thang ah ,dk,ci cung di pua 1 diem




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