如图1,在Rt△ABC中,∠ACB=90°,AC=6,BC=8,点D在边AB上运动,DE平分∠CDB交边BC于点E,EM⊥BD垂足为M,EN⊥CD垂足为N.(1)当AD=CD时,求证:DE∥AC;(2)探究:AD为何值时,△BME与△CNE相似?(3)探究:AD为何
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/28 02:46:11
![如图1,在Rt△ABC中,∠ACB=90°,AC=6,BC=8,点D在边AB上运动,DE平分∠CDB交边BC于点E,EM⊥BD垂足为M,EN⊥CD垂足为N.(1)当AD=CD时,求证:DE∥AC;(2)探究:AD为何值时,△BME与△CNE相似?(3)探究:AD为何](/uploads/image/z/7378920-0-0.jpg?t=%E5%A6%82%E5%9B%BE1%2C%E5%9C%A8Rt%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0ACB%3D90%C2%B0%2CAC%3D6%2CBC%3D8%2C%E7%82%B9D%E5%9C%A8%E8%BE%B9AB%E4%B8%8A%E8%BF%90%E5%8A%A8%2CDE%E5%B9%B3%E5%88%86%E2%88%A0CDB%E4%BA%A4%E8%BE%B9BC%E4%BA%8E%E7%82%B9E%2CEM%E2%8A%A5BD%E5%9E%82%E8%B6%B3%E4%B8%BAM%2CEN%E2%8A%A5CD%E5%9E%82%E8%B6%B3%E4%B8%BAN%EF%BC%8E%EF%BC%881%EF%BC%89%E5%BD%93AD%3DCD%E6%97%B6%2C%E6%B1%82%E8%AF%81%EF%BC%9ADE%E2%88%A5AC%EF%BC%9B%EF%BC%882%EF%BC%89%E6%8E%A2%E7%A9%B6%EF%BC%9AAD%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2C%E2%96%B3BME%E4%B8%8E%E2%96%B3CNE%E7%9B%B8%E4%BC%BC%3F%EF%BC%883%EF%BC%89%E6%8E%A2%E7%A9%B6%EF%BC%9AAD%E4%B8%BA%E4%BD%95)
xT]of+(Rfm̄[Kr?0amhI5iW&$-!mZ(d4ڪ|DD~J/^NEs7i7s>s"n.(a8HWILjlx!T 8Y*{O"Z/phveVH'Vњ6&X,kUjeL`yMh
k!Wj'Ư&h@a71h
+̀
MljH 5RTzm\Co.5j&)8A4;fo~qd-!ҔU%MR$^Xy4jdծ+/n~f1GƩj+ q\3>xjZq
]$
%\*h
4
{vU?} ]}7kZ,Aotٿ#NKH;ssT Ϡ^C}m)RjYѾd7fRTmzᲑ|R)̉IKFҏÓd72۹}>ɛ2[[yȦ{[}fĖ-"[4ϐ/
FYit ,1 #'$2DX"i Kr dahNa:I)9)ޟrJFv.\BA?C&St( %H$0I0˗/94?!3"`a