已知:如图,在直线l上顺次有A、B、C三点,AB=4cm, AB>BC,点O是线段AC的中点,且OB=
cm,求: B、 C两点之间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2019/2/12/2139080667152384/2139247270363136/STEM/5973b882c7fb4ccf9890c2681353d67f.png?resizew=273)
更新时间:2019-02-12 20:12:37
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【推荐1】如图,线段AB=8,点C是线段AB的中点,点D是线段BC的中点.
(2)若在线段AB上有一点E,CE=
BC,求AE的长.
(2)若在线段AB上有一点E,CE=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10402e4ddd0d323cc1ae83801ae976db.png)
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【推荐2】如图,平面上点
在直线
上方,按下述要求画图并填空:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/342776bd-14d3-437b-ac58-2d76c3b349a9.png?resizew=239)
(1)画射线
;
(2)连接线段
;
(3)过点
作直线
的垂线段
,垂足为点
;
(4)过点
作直线
;
(5)点
到点
的距离是线段______的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/342776bd-14d3-437b-ac58-2d76c3b349a9.png?resizew=239)
(1)画射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)连接线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(4)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f572de8798c6eb993ede7606cf7402e9.png)
(5)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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【推荐1】已知:点C、D、E在直线AB上,且点D是线段AC的中点,点E是线段DB的中点,若点C在线段EB上,且DB=6,CE=1,求线段AB的长.
![](https://img.xkw.com/dksih/QBM/2022/1/23/2900232057356288/2901606445907968/STEM/bdec1507-cf58-43cc-93c2-7e25cb670cdc.png?resizew=355)
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【推荐2】已知点C是线段
上一点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/5d8d36bd-f48d-4f06-b233-8d13e283b9bc.png?resizew=169)
(1)若
,求
的长;
(2)若
,D是
的中点,E是
的中点,请用含a的代数式表示
的长,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661118c777c154fe49a24dfdc79f9b8d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/5d8d36bd-f48d-4f06-b233-8d13e283b9bc.png?resizew=169)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a3debb802dd4f3e774b16ad1c154ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d42e97eee705d164e6ac6de9ecd6d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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