如图,AC垂直BC,BM平分角ABC且交AC于点M,N是AB的中点且BN=BC.求证(1)MN平如图,AC垂直BC,BM平分角ABC且交AC于点M,N是AB的中点且BN=BC. 求证(1)MN平分角AMB(2)角A=角CBM.
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![如图,AC垂直BC,BM平分角ABC且交AC于点M,N是AB的中点且BN=BC.求证(1)MN平如图,AC垂直BC,BM平分角ABC且交AC于点M,N是AB的中点且BN=BC. 求证(1)MN平分角AMB(2)角A=角CBM.](/uploads/image/z/15161586-42-6.jpg?t=%E5%A6%82%E5%9B%BE%2CAC%E5%9E%82%E7%9B%B4BC%2CBM%E5%B9%B3%E5%88%86%E8%A7%92ABC%E4%B8%94%E4%BA%A4AC%E4%BA%8E%E7%82%B9M%2CN%E6%98%AFAB%E7%9A%84%E4%B8%AD%E7%82%B9%E4%B8%94BN%3DBC.%E6%B1%82%E8%AF%81%EF%BC%881%EF%BC%89MN%E5%B9%B3%E5%A6%82%E5%9B%BE%2CAC%E5%9E%82%E7%9B%B4BC%2CBM%E5%B9%B3%E5%88%86%E8%A7%92ABC%E4%B8%94%E4%BA%A4AC%E4%BA%8E%E7%82%B9M%2CN%E6%98%AFAB%E7%9A%84%E4%B8%AD%E7%82%B9%E4%B8%94BN%3DBC.+%E6%B1%82%E8%AF%81%EF%BC%881%EF%BC%89MN%E5%B9%B3%E5%88%86%E8%A7%92AMB%EF%BC%882%EF%BC%89%E8%A7%92A%3D%E8%A7%92CBM.)
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