摘要:练习1.如图.下列哪组条件不能判定△ABC≌△DEF( ) 练习2.已知:如图.AC=AD, ∠CAB=∠DAB 求证:△ACB≌△ADB 练习3.已知:如图.AB=AC,AD=AE. 求证: △ABE≌△ACD
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如图,四边形ABCD的对角线交于点O,下列哪组条件不能判断四边形ABCD是平行四边形 ( ) ( )
A.OA=OC,OB=OD B.∠BAD=∠BCD,AB∥CD
C.AD∥BC,AD=BC D.AB=CD,AO=CO
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如图,四边形ABCD的对角线交于点O,下列哪组条件不能判断四边形ABCD是平行四边形 ( ) ( )
A.OA=OC,OB=OD B.∠BAD=∠BCD,AB∥CD
C.AD∥BC,AD=BC D.AB=CD,AO=CO
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如图,四边形ABCD的对角线交于点O,下列哪组条件不能判断四边形ABCD是平行四边形 ( ) ( )![]()
| A.OA=OC,OB=OD | B.∠BAD=∠BCD,AB∥CD |
| C.AD∥BC,AD=BC | D.AB=CD,AO=CO |