如图,根据图形填空: 已知:∠DAF=∠F,∠B=∠D,AB与DC平行吗? 解:∠DAF=∠F ( )∴AD∥BF( ),∴∠D=∠DCF( )∵∠B=∠D (已知 )∴∠B=∠DCF ( )∴AB∥DC( )