如图,AB∥DC,AD∥BC,BE⊥AC于E,DF⊥AC于F,求证:BE=DF.
如图,AB∥DC,AD∥BC,BE⊥AC于E,DF⊥AC于F,求证:BE=DF.
已知:如图,AC平分∠BAD,CE⊥AB于E CF⊥AD于F,且BC=DC.求证:BE=DF.
如图,已知AD=BC,BE⊥AC于E,DF⊥AC于F,且BE=DF.求证AB‖CD
已知:如图AC平分∠BAD,CE⊥AB于E,CF⊥AD于F,且BC=DC求证BE=DF
1.如图 AB//DC AD//BC BE⊥AC于E DF⊥AC于F 求证BE=DF2.如图 已知在Rt△A
【后面会追加分数的】(1)如图 AB平行于CD,AD平行于BC,BE⊥AC于E,DF⊥AC于F求证:BE=DF(2)把第
如图,四边形ABCD中,AB‖DC,AD‖CB,BE⊥AC,DF⊥AC,垂足分别为E,F.求证:BE=DF.
如图,已知AD=CB,BE垂直AC于点E,DF垂直AC于点F,BE=DF,求证;AD//BC.
AD是∠BAC的平分线,DE⊥AB于E,DF⊥AC于F,且DB=DC,求证AC=AE+BE
如图,已知AD是∠BAC的平分线,BE⊥AB交AB的延长线于E,DF⊥AC于F,且BD=DC.求证:BE=CF
如图,已知AB⊥BC,AE⊥EF,AC=DF,BE=CF.求证AC平行于DF.
如下图,在△ABC中,AD⊥BC于D,DF⊥AB于F,DE⊥AC于E,DF=DE 求证:AB=AC