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CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B.=∠D.=90°
AB=AC BE=CD
角B=角C 角ADC=角AEB
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B.=∠D.=90°
∠A.=∠C. AD=CB BE=DF AD∥BC
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B.=∠D.=90°
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B.=∠D.=90°
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B.=∠D.=90°
AB=AC BE=CD 角B=角C 角ADC=角AEB
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B=∠D=90°
AB=AD ∠BCA=∠DCA CB=CD ∠ADC=∠ABC
AB=AC BE=CD 角B=角C 角ADC=角AEB
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B=∠D=90°
∠ =∠CB.∠AEB=∠ADC AE=AD BE=DC
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B.=∠D.=90°
CB=CD ∠BAC=∠DAC ∠BCA=∠DCA ∠B=∠D=90°
AC∥DF ∠A.=∠D AC=DF ∠ACB=∠F.
CB=CD ∠BCA=∠DCA ∠BAC=∠DAC ∠B.=∠D.=90°