如图,已知点C为
上一点,
,D,E分别为
,
的中点,则
的长为_________
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/6ef2b515-09b2-41ce-8232-bba189988f64.png?resizew=243)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ace4f233beb5b16ba4343f001203c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/6ef2b515-09b2-41ce-8232-bba189988f64.png?resizew=243)
更新时间:2022-02-15 15:12:47
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【推荐1】如图,点C在线段AB的延长线上,BC=2AB,点D是线段AC的中点,AB=4,则BD长度是_____ .
![](https://img.xkw.com/dksih/QBM/2020/3/30/2430703056044032/2432591590686720/STEM/57136a91111745a9baf045037eddfbe7.png?resizew=167)
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