如图,已知AD=BE,BC=EF,AC=DF
如图,已知:AD=BE,AC=DF,且AC∥DF,求证:BC∥EF
图,已知AD=BE,BC平行EF,BC=EF 求证 AC=DF
已知如图,AD=BE,AC=DF,BC=EF,证:△ABC≌△DEF.
如图,已知AD=BE,AC=DF,BC=EF.求证:△ACB≌△DFE;求证:AC∥DF
如图,已知AB⊥BC,AE⊥EF,AC=DF,BE=CF.求证AC平行于DF.
如图,已知BE=DF,AC=CF,AE‖CF.求证:AD‖BC.
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.
如图,已知点B、E在线段AD上,AE=DB,AC=DF,BC=EF.
已知如图,∠BAC=90°,AD垂直于BC,∠ABE=∠EBC,EF垂直于CB.求:EF×AC=DF×BC
如图,已知AC⊥BC,AD⊥BD,AD=BC,CE⊥AB,垂足分别为、EF求证CE=DF
已知,如图,AD=BC,AE=CF,BE⊥AC,DF⊥AC,垂足分别为E,F,求证;DF=BE
如图,已知AD=BC,BE⊥AC于E,DF⊥AC于F,且BE=DF.求证AB‖CD