问一道全等三角形的题2、如图,以知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD‖BC.求证:1、AC=EF
问一道全等三角形的题2、如图,以知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD‖BC.求证:1、AC=EF
如图,已知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD‖BC,求证AC⊥EF
如图,已知AD//BC,AD=BC,AE⊥AD,AF⊥AB,AE=AD,AB=AF.求证:AC=EF.
如图,AD∥BC,AD=BC,AE⊥AD,AF⊥AB,且AE=AD,AF=AB,求证:AC=EF.
如图,已知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD∥BC,求证:(1)AC=EF(2)AC⊥EF
如图,AB‖CD,AD‖BC,AE⊥AB,AF⊥AD,AE=AB,AF=AD,试说明AC=EF
如图,AD是三角形ABC的中线,AE垂直AC,AF垂直AB,且AE=AC,AF=AB,求证:AD=1/2EF
已知AE⊥AD,AF⊥AB,AE=AD=BC,AD‖BC,求证:⑴AC=EF⑵AC⊥EF
如图9,AD//BC,AE⊥AD且AE=AD,AF⊥AB且AF=AB.则AC与EF是否相等?为什么?
如图,已知AD⊥AB,AD⊥AC,AE⊥BC.D是FG的中点,AF=AG,EF=EG.求证:BC∥FG.
如图,已知AE⊥AD,AF⊥AB,AB//CD,AE=CD,AE=AD,AF=CD,求证AC=EF
如图,已知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD∥BC,猜想线段AC,EF的关系,并证明你