Cần giải gấp

V

vy000

Kẻ $MK//AB//CD \Rightarrow KA=KD$

Có:$\widehat{ADM}=\widehat{MDC}=\widehat{KMD}$

$\Rightarrow KD=KM$

$\Rightarrow KA=KM$

$\Rightarrow \widehat{KAM}=\widehat{KMA}=\widehat{BAM}$

Chứng tỏ..........
 
You must log in or register to reply here.
Top Bottom