如图,点B为线段
的中点,点C在线段
上,若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbeb8ebe198bb9ef37b5c57027b28821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/029af0dd-89cb-4ea0-b3c6-af6889c05a2a.png?resizew=223)
19-20七年级上·福建莆田·期末 查看更多[8]
更新时间:2024-01-12 11:50:41
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【推荐1】如图,已知线段AB=40厘米,E为AB的中点,C在EB上,F为CB的中点,且FB=6厘米,求CE的长.
![](https://img.xkw.com/dksih/QBM/2015/3/21/1573817465405440/1573817471680512/STEM/d719b23a0995496fbf4e0db6d70d33c9.png)
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【推荐2】已知:点A,B,C在同一条直线上,线段
,M是线段
的中点.求,线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4a7a62f6188aed03d2ac3d71815ae83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
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解答题-作图题
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【推荐1】如图,已知线段
,请用尺规按下列要求作图:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/c61d5365-756e-4d14-8141-a1fbbef6821e.png?resizew=193)
(1)延长线段
到C,使
;
(2)延长线段
到D,使
;如果
,那么
________
,
________
,
________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/c61d5365-756e-4d14-8141-a1fbbef6821e.png?resizew=193)
(1)延长线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be86349e06431647f8e359d9bd07700.png)
(2)延长线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc13fe21e64d9b45614ed43be847904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc3dcc4325297dac77a92c0682a6cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
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【推荐2】如图,点C在线段
上,点M是
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/98ba8d44-976e-4249-ba19-c0e983e1f7fc.png?resizew=336)
(1)求线段
的长;
(2)在线段
上取一点N,使得
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd90bfa2987b84df430498021d5f648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59efa8fd3ef37ad668263448608fb6b4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/98ba8d44-976e-4249-ba19-c0e983e1f7fc.png?resizew=336)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0860c835317d65cc39070e1b6161dc42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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