急用,好的快的再追50分.急用如图,正方形ABCD中,E、F分别是BC、CD边上的动点,满足∠EAF=45°. (1)求证:BE+DF=EF; ( 2 ) 若正方形边长为6cm,DF为2cm,请利用(1)中的结论,求EF的长.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 12:22:22
![急用,好的快的再追50分.急用如图,正方形ABCD中,E、F分别是BC、CD边上的动点,满足∠EAF=45°. (1)求证:BE+DF=EF; ( 2 ) 若正方形边长为6cm,DF为2cm,请利用(1)中的结论,求EF的长.](/uploads/image/z/3966561-9-1.jpg?t=%E6%80%A5%E7%94%A8%2C%E5%A5%BD%E7%9A%84%E5%BF%AB%E7%9A%84%E5%86%8D%E8%BF%BD50%E5%88%86.%E6%80%A5%E7%94%A8%E5%A6%82%E5%9B%BE%2C%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E4%B8%AD%2CE%E3%80%81F%E5%88%86%E5%88%AB%E6%98%AFBC%E3%80%81CD%E8%BE%B9%E4%B8%8A%E7%9A%84%E5%8A%A8%E7%82%B9%2C%E6%BB%A1%E8%B6%B3%E2%88%A0EAF%EF%BC%9D45%C2%B0%EF%BC%8E+%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9ABE%EF%BC%8BDF%EF%BC%9DEF%EF%BC%9B++%28++2+%29+%E8%8B%A5%E6%AD%A3%E6%96%B9%E5%BD%A2%E8%BE%B9%E9%95%BF%E4%B8%BA6cm%2CDF%E4%B8%BA2cm%2C%E8%AF%B7%E5%88%A9%E7%94%A8%281%29%E4%B8%AD%E7%9A%84%E7%BB%93%E8%AE%BA%2C%E6%B1%82EF%E7%9A%84%E9%95%BF.)
xV[OG+TIl{nF?jo%1UQsJR 8 m!RY/O93'BJڧJh99;g7Zzd&ř_Q6x-_MhYz7\{-h"y{`5> 4[iքNs2z7i.[Ӝq)4OuB_[}"ۿp7h3%+>xog!7r@\w7.K=_U7hܽǓ);78T]݅NhqQ-Z<GjT[ߣ-sR}T,VcδNZ>-lχ0v}'~(pug8z
>\ln:
Ldcû42$+X
Nɲ;]iM3L0Zc c6!]IO$Y(1X>=pJS/"DKEx(_ś kKX\{S>3>,2:͙u˰]7𰢥VcN_-RIqu(q:j̑ENLǛGȁ8õ55CC8B3$\[瀘1c"Dį^@UZDq
?&\Bo I%TS=/"ˡ.*{b)P_P|4EW LO,Ai%1O?'|*2phWPKE?t.KOevKZ^jh` LOlCo ;%-nf}R.3Ix8