(2014?赤峰)如图,已知△ABC中AB=AC.(1)作图:在AC上有一点D,延长BD,并在BD的延长线上取点E,使A
(2014?赤峰)如图,已知△ABC中AB=AC.(1)作图:在AC上有一点D,延长BD,并在BD的延长线上取点E,使AE
(2014?赤峰)如图,已知△ABC中AB=AC.
(1)作图:在AC上有一点D,延长BD,并在BD的延长线上取点E,使AE=AB,连AE,作∠EAC的平分线AF,AF交DE于点F(用尺规作图,保留作图痕迹,不写作法);
(2)在(1)的条件下,连接CF,求证:∠E=∠ACF.