4.已知正方形ABCD中,E为对角线BD上一点,过E点作EF⊥BD交BC于F,连接DF,G为DF中点,连接EG,CG. (1)4.已知正方形ABCD中,E为对角线BD上一点,过E点作EF⊥BD交BC于F,连接DF,G为DF中点,连接EG,CG.(1)求
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![4.已知正方形ABCD中,E为对角线BD上一点,过E点作EF⊥BD交BC于F,连接DF,G为DF中点,连接EG,CG. (1)4.已知正方形ABCD中,E为对角线BD上一点,过E点作EF⊥BD交BC于F,连接DF,G为DF中点,连接EG,CG.(1)求](/uploads/image/z/4536651-3-1.jpg?t=4%EF%BC%8E%E5%B7%B2%E7%9F%A5%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E4%B8%AD%2CE%E4%B8%BA%E5%AF%B9%E8%A7%92%E7%BA%BFBD%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E8%BF%87E%E7%82%B9%E4%BD%9CEF%E2%8A%A5BD%E4%BA%A4BC%E4%BA%8EF%2C%E8%BF%9E%E6%8E%A5DF%2CG%E4%B8%BADF%E4%B8%AD%E7%82%B9%2C%E8%BF%9E%E6%8E%A5EG%2CCG%EF%BC%8E+%EF%BC%881%EF%BC%894%EF%BC%8E%E5%B7%B2%E7%9F%A5%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E4%B8%AD%2CE%E4%B8%BA%E5%AF%B9%E8%A7%92%E7%BA%BFBD%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E8%BF%87E%E7%82%B9%E4%BD%9CEF%E2%8A%A5BD%E4%BA%A4BC%E4%BA%8EF%2C%E8%BF%9E%E6%8E%A5DF%2CG%E4%B8%BADF%E4%B8%AD%E7%82%B9%2C%E8%BF%9E%E6%8E%A5EG%2CCG%EF%BC%8E%EF%BC%881%EF%BC%89%E6%B1%82)
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