①AB=A1B1 ,AD=A1D1 , ∠A=∠A1 , ∠B=∠B1 , ∠C=∠C1;
②AB=A1B1 ,AD=A1D1 , ∠A=∠A1 , ∠B=∠B1 , ∠D=∠D1;
③AB=A1B1 ,AD=A1D1 , ∠B=∠B1 , ∠C=∠C1 , ∠D=∠D1;
④AB=A1B1 ,CD=C1D1 , ∠A=∠A1 , ∠B=∠B1 , ∠C=∠C1 .
其中能判定四边形ABCD和四边形A1B1C1D1全等的有个.