数学几何题,关于全等三角形的!以知AB=CD AD=BC ,AC BD相交于O,AO=OC,EF过O点.求证OE=OF
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![数学几何题,关于全等三角形的!以知AB=CD AD=BC ,AC BD相交于O,AO=OC,EF过O点.求证OE=OF](/uploads/image/z/2108187-27-7.jpg?t=%E6%95%B0%E5%AD%A6%E5%87%A0%E4%BD%95%E9%A2%98%2C%E5%85%B3%E4%BA%8E%E5%85%A8%E7%AD%89%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%21%E4%BB%A5%E7%9F%A5AB%3DCD+AD%3DBC+%2CAC+BD%E7%9B%B8%E4%BA%A4%E4%BA%8EO%2CAO%3DOC%2CEF%E8%BF%87O%E7%82%B9.%E6%B1%82%E8%AF%81OE%3DOF)
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