已知:如图,点
是线段
的中点,
,
,求
的长.
![](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/dd5c43af8617515259e51e5e364995fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1337ce85d29edabcc2fadb9a9cc31ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/8/898442b3-3b2c-4924-a753-066857ca30a4.png?resizew=327)
更新时间:2022-04-17 09:23:54
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐2】如图:点C为线段
上一点,点D为
的中点,且
,
.
![](https://img.xkw.com/dksih/QBM/2023/1/10/3149653858099200/3162655761522688/STEM/c8a9826ef70f40739ae4fbdc6eff7791.png?resizew=545)
(1)求
的长;
(2)若点E在直线
上,且
,求
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/ae1fbb1f69f91e628aa45e6265edca4e.png)
![](https://img.xkw.com/dksih/QBM/2023/1/10/3149653858099200/3162655761522688/STEM/c8a9826ef70f40739ae4fbdc6eff7791.png?resizew=545)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)若点E在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60634341a9603e24b2bbc6960abe3d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】如图,点
是线段
上一点,并且
,点
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/513f3a12-c5d5-4dc5-99f2-9aab7669215d.png?resizew=320)
(1)若线段
,求
的值;
(2)若线段
,求线段
的长.(用含
的式子表示)
![](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/d32415732f02c323b58581cb252c8aef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/513f3a12-c5d5-4dc5-99f2-9aab7669215d.png?resizew=320)
(1)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3433f3d99b827bb05e87d92faaf89f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675ddf2df7d69d433fafeef899ee9294.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16b41f357d9ae0d6645a4a86cb1c934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】如图,C,D是线段
上的两点,且满足
,M,N分别为
和
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/cb054dad-c4de-4189-afdf-1ff60067b3e0.png?resizew=231)
(1)若
,求
的长度;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8590dcbe44674a7732f9ba5d6f44bb6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/cb054dad-c4de-4189-afdf-1ff60067b3e0.png?resizew=231)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a1f73190215b1c9d45a3dd9e6b66ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ab461b5e388c6acc038e6c03369b18.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】如图,线段
,线段
,点
是
的中点,在
上取一点
,使得
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fae188b381c5ba01b3d9d742c687dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f5e900da706536c57f7c1ae7a1174a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6a5a4813d0f1d25a6b672a2e69dfe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/2020/3/12/2417904200114176/2418060737363969/STEM/2b7653015b9c46bd9a291c43ba71c323.png?resizew=296)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】如图,线段
,
,点M是
的中点.
(1)求线段
的长度;
(2)在
上取一点N,使得
.求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4630b9ca3d20635161fa8fbf812b9128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2176dac04a8b410e319342fb8e895b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/cf0a9140-210a-4690-929b-4968faa3ba14.png?resizew=220)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838a3ea965289fd7dc60558121e2581a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次