如图,在 △ABC中,∠C=90
,BD是∠ABC的平分线,DE⊥AB,垂足为E,CD=5cm,则DE的长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/11b34b83-f735-4ad2-942d-be65e307775c.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/11b34b83-f735-4ad2-942d-be65e307775c.png?resizew=179)
A.3cm | B.4cm | C.5cm | D.6cm |
更新时间:2020-05-01 19:22:01
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,△ABC中,∠C = 90°,AC = BC,AD是∠BAC的平分线,DE⊥AB于E,若AB = 10cm,则△DBE的周长等于( )
![](https://img.xkw.com/dksih/QBM/2017/10/6/1795668599398400/1829318566682624/STEM/dd26eb85b1c04de289a38e757584f87f.png?resizew=127)
![](https://img.xkw.com/dksih/QBM/2017/10/6/1795668599398400/1829318566682624/STEM/dd26eb85b1c04de289a38e757584f87f.png?resizew=127)
A.10cm | B.8cm | C.6cm | D.9cm |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,在
中,
,
,
,
的平分线交
于点
,与
的垂线
相交于点
,则
为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/75170bac-c798-42c9-a02b-1949c01ef8ec.png?resizew=169)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ebb33adb2310a6e03918761e68204a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4561c12020a4e41cd8f9023a437d65a6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/75170bac-c798-42c9-a02b-1949c01ef8ec.png?resizew=169)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次