如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE
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如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE因为CE=BF
如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE
如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE
如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE
因为CE=BF,所以CE+EF=BF+EF,即CF=BE,由SSS可证ABE和DCF全等,于是∠C等于∠B,又有SAS证ABF和DCE全等,于是AF=DE
已知:如图,AB=DC,AE=DF,CE=FB,求证:AF=DE
已知如图AB=DC,AE=DF,CE=FB求证AF=DE
如图,已知AB=DC AE=DF .CE=BF 求证:AF=DE
如图,已知AB=DC,AE=DF,CE=FB,求证AF=DE
如图,已知AB=DC,AE=DF,CE=FB,求证：AF=DE
如图,已知AB=DC,AE=DF,CE=BF,求证：AF=DE
已知:如图,AD=CD CE=BF DF=AE 求证AB‖DC
如图,已知AE/EB=DF/FC=/,求AB/EB,DC/FC,AB/AE,DC/DF的值
如下图,AB=DC,BF=CE,AE=DF,求证AB//CD
已知：如图,E﹑F是线段BC上的两点,AB∥CD,AB=DC,CE=BF.求证：AE=DF.
已知：如图,E﹑F是线段BC上的两点,AB∥CD,AB=DC,CE=BF.求证：AE=DF.
如图,已知,AB=CD,CE=DF,AE=BF,则CE‖DF吗?为什么?
如图所示,已知AB=DC,AE=DF,CE=BF试说明AF=DE
已知如图,点E,F在BC上BF=CE,AB=DC,AE=DF求证∠A=∠D
已知:如图,点A,B,C,D在同一条直线上,EA⊥AD,FD⊥AD,AE=DF,CE=BF.求证:AB=DC.
如图,AE=DF,B,C是AD上的两点,且AB=DC,CE=BF,试问AE与DF平行吗,为什么
如图,AE=DF,B,C是AD上的两点,且AB=DC,CE=BF,试问AE与DF平行吗,为什么
如图,在梯形ABCD中,AD//BC,AB=DC,AE//DC,DF//AB.试说明AE＝DF.