T
tieuthu_bongbong


Cho tam giac ABC co goc A = 50 do . Tu dinh A ke duong thang song song voi BC , cat tia phan giac cua goc B tai E
a) C/m tam giac AEB can
b) Tinh goc BAE
a) C/m tam giac AEB can
b) Tinh goc BAE