如图,在
中,
于
则
的长为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de75dbb806bc5125b93586107dce45a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3ad66cf49d46fe39be15f5c23eec68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
更新时间:2020-11-19 20:10:56
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】如图,在中,
,D是
边上不同于B、C的一动点,过D作
,垂足为E,连接
.
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a16c69f73116aa25f29d11ab1ec771.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8413eaf0283f7b03c83da8e0b9fc97c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc9f0779b0ba2f9f97caf35c166ad24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48208a3f67fd590d973badcc742d4b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】如图,CD为
的直径,弦
于E,如果
,
,求半径OC的长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77e3c1c236141d6118429fade0a9b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348fb71fbc47fd87e9ce011652ef4186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/c2fab67b-2418-4c8a-b57e-90c8afd9c37f.png?resizew=237)
您最近一年使用:0次