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![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
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[FONT=.VnTime]Cho tam giac ABC vuông tại A, Ethuôc AC, vẽ dtr (K) dg kinh AC cat BC tai M. tia BE cat (K)tai D. AD cat (K) tai F. C/m:[/FONT]
[FONT=.VnTime][FONT=.VnTime]a)[/FONT] [/FONT][FONT=.VnTime]ABCD, ABME la tgnt.[/FONT]
[FONT=.VnTime][FONT=.VnTime]b)[/FONT] [/FONT][FONT=.VnTime]CA la tia p/g cua goc BCF. MF//AB.[/FONT]
[FONT=.VnTime][FONT=.VnTime]c)[/FONT] [/FONT][FONT=.VnTime]Goc AFE = goc AME. 4 diem A,M,K,Dcung thuoc 1 dg tron. [/FONT]
[FONT=.VnTime][FONT=.VnTime]a)[/FONT] [/FONT][FONT=.VnTime]ABCD, ABME la tgnt.[/FONT]
[FONT=.VnTime][FONT=.VnTime]b)[/FONT] [/FONT][FONT=.VnTime]CA la tia p/g cua goc BCF. MF//AB.[/FONT]
[FONT=.VnTime][FONT=.VnTime]c)[/FONT] [/FONT][FONT=.VnTime]Goc AFE = goc AME. 4 diem A,M,K,Dcung thuoc 1 dg tron. [/FONT]