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∠A.=∠D AB=DC ∠ACB=∠DBC AC=BD
∠A=∠D ∠ACB=∠DBC AC=DB AB=DC
AB=DC,AC=DB AB=DC,∠ABC=∠DCB BO=CO,∠A.=∠D AB=DC,∠DBC=∠ACB
∠A.=∠D AB=DC ∠ACB=∠DBC AC=BD
∠A.=∠D AB=DC ∠ACB=∠DBC AC=BD
AC=DB AB=DC ∠ACB=∠DBC ∠A=∠D
∠A.=∠D AB=DC ∠ACB=∠DBC AC=BD
AB=DC,AC=DB AB=DC,∠ABC=∠DCB BO=CO,∠A.=∠D AB=DC,∠DBC=∠ACB
∠A=∠D ∠ACB=∠DBC AC=DB AB=DC
∠A.=∠D AB=DC ∠ACB=∠DBC AC=BD ,
∠A=∠D ∠ACB=∠DBC AC=DB AB=DC
AB=DC,AC=DB AB=DC,∠ABC=∠DCB BO=CO,∠A.=∠D AB=DC,∠DBC=∠ACB
∠A.=∠D AB=DC ∠ACB=∠DBC AC=BD