已知正方形ABCD,E为AB中点,F为AD中点,求证:(1)CE⊥BF;(2)比较CD与DG的大已知正方形ABCD,E为AB中点,F为AD中点,求证:(1)CE⊥BF;(2)比较CD与DG的大小.
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![已知正方形ABCD,E为AB中点,F为AD中点,求证:(1)CE⊥BF;(2)比较CD与DG的大已知正方形ABCD,E为AB中点,F为AD中点,求证:(1)CE⊥BF;(2)比较CD与DG的大小.](/uploads/image/z/2779239-39-9.jpg?t=%E5%B7%B2%E7%9F%A5%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%2CE%E4%B8%BAAB%E4%B8%AD%E7%82%B9%2CF%E4%B8%BAAD%E4%B8%AD%E7%82%B9%2C%E6%B1%82%E8%AF%81%EF%BC%9A%EF%BC%881%EF%BC%89CE%E2%8A%A5BF%EF%BC%9B%EF%BC%882%EF%BC%89%E6%AF%94%E8%BE%83CD%E4%B8%8EDG%E7%9A%84%E5%A4%A7%E5%B7%B2%E7%9F%A5%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%2CE%E4%B8%BAAB%E4%B8%AD%E7%82%B9%2CF%E4%B8%BAAD%E4%B8%AD%E7%82%B9%2C%E6%B1%82%E8%AF%81%EF%BC%9A%EF%BC%881%EF%BC%89CE%E2%8A%A5BF%EF%BC%9B%EF%BC%882%EF%BC%89%E6%AF%94%E8%BE%83CD%E4%B8%8EDG%E7%9A%84%E5%A4%A7%E5%B0%8F.)
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