【问题情境�(1)如图1,正方形abcd中,e、f分别是边ab和对角线ac上的点,∠edf=45°.易证 Dbe∽ Dcf(不需写出证明过程 Template




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tomski【问题情境�(1)如图1,正方形abcd中,e、f分别是边ab和对角线ac上的点,∠edf=45°.易证 dbe∽ dcf(不需写出证明过程 coloring