题型:解答题-问答题
难度:0.65
引用次数:554
题号:15545134
如图1,图2分别是某种型号拉杆箱的实物图与示意图,根据商品介绍,获得了如下信息:滑竿DE、箱长BC拉杆AB的长度都相等,即DE=BC=AB=50,点B、F在线段AC上,点C在DE上,支杆DF=30cm.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/e6508f69-d7f9-4932-a099-8ebcc45315fe.png?resizew=281)
(1)若EC=36cm时,B,D相距48cm,试判定BD与DE的位置关系,并说明理由;
(2)当∠DCF=45°,CF=
AC时,求CD的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/e6508f69-d7f9-4932-a099-8ebcc45315fe.png?resizew=281)
(1)若EC=36cm时,B,D相距48cm,试判定BD与DE的位置关系,并说明理由;
(2)当∠DCF=45°,CF=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
更新时间:2022-04-15 20:06:42
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