如图,AB//DE,AE//DC,若S△ABE=18cm²,S△DEC=12cm²,则S△ADE=____cm²(求过程!)
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如图,AB//DE,AE//DC,若S△ABE=18cm²,S△DEC=12cm²,则S△ADE=____cm²(求过程!)
如图,AB//DE,AE//DC,若S△ABE=18cm²,S△DEC=12cm²,则S△ADE=____cm²(求过程!)
如图,AB//DE,AE//DC,若S△ABE=18cm²,S△DEC=12cm²,则S△ADE=____cm²(求过程!)
如图,AB=DC,DE=BF,AE=CF.求证:DC∥AB
如图,已知AB平行DC,AB=DC,AE=CF,求证:BF=DE
如图,AB//DE,AE//DC,若S△ABE=18cm²,S△DEC=12cm²,则S△ADE=____cm²(求过程!)
如图,已知AE=DE,AE⊥DE,AB⊥BC,DC⊥BC.求证:AB+CD=BC
如图,已知AE等于DE,AE垂直DE,AB垂直BC,DC垂直BC,求证:AB+CD等于BC.
如图:已知AE=DE,AE垂直DE,AB垂直BC,DC垂直BC.求证AB+CD=BC
如图,已知△ACB≌△DFE (1)求证AB//DE (2)求证DC=AE
已知:如图,AB=DC,AE=DF,CE=FB,求证:AF=DE
已知如图AB=DC,AE=DF,CE=FB求证AF=DE
如图,已知AB=DC AE=DF .CE=BF 求证:AF=DE
如图,已知AB=DC,AE=DF,CE=BF,求证AF=DE
如图,已知AB=DC,AE=DF,CE=FB,求证AF=DE
如图,已知AB=DC,AE=DF,CE=FB,求证:AF=DE
如图,已知AB等于DC,AE等于DF,CE等于FB,求证AF等于DE
如图,已知AB=DC,AE=DF,CE=BF,求证:AF=DE
已知如图,AB‖DE,角1=∠2,求证AE‖DC
如图,已知AB=DC,AC=DB,求证AE=DE
如图,已知AB=DC,AC=DB,BE=CE,求证AE=DE