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如图,Rt△ABC中,∠C=90°,∠ABC的平分线BD交AC于D,若CD=3c...
如图,Rt△ABC中,∠C=90°,∠ABC的平分线BD交AC于D,若CD=3cm,则点D到AB的距离DE是( )
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A.5cm
B.4cm
C.3cm
D.2cm
考点分析:
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