已知:如图,AB=CD,AE=CF,BE=DF.求证:AF∥CE
已知:如图,AB=CD,AE=CF,BE=DF.求证:AF∥CE
如图,已知AB=CD,DF=BE,AF=CE,求证:∠CDF.
如图,已知AB=DC,AE=DF,CE=BF,求证AF=DE
如图 已知AB=CD,AE=DF,CE=BF.求证:AF=DE
如图,已知ABⅡCD,OA=OD,AE=DF,求证:BEⅡCF.
如图AB=CD AF平行DF CF平行BE 求证AF=DE
一道数学题0如图,AB=AE,∠ABC=∠AED,BC=ED,CF=DF,求证:AF⊥CD图在这
如图,ab=cd,ae=df,ce=fb,求证af=de
AB=CD,AE=DF,CE=BF.求证:AE∥DF
如图,AB=AE,BC=ED,∠B=∠E,AF⊥CD,证明:CF=DF
如图,已知:df垂直ac,be垂直ac,ae等于cf,ab等于cd,求证:ad等于bc
如图,已知AB=DC AE=DF .CE=BF 求证:AF=DE