在平行六面体
中,
,
,
,
,
,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29e8a1eefb6776168969a1155c9e9c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7276aacfe84451993bb85d15e946e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-11-09 08:37:06
|
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】如图,已知矩形ABCD中,E为线段CD上一动点(不含端点),记,现将
沿直线AE翻折到
的位置,记直线CP与直线AE所成的角为
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/5cb23bdd-a64c-4bef-9957-4c85453277ad.png?resizew=291)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐2】如图,在
二面角的棱上有两点A、B,线段AC、BD分别在这个二面角的两个面内,并且都垂直于棱AB,若AB=4,AC=6,BD=6,则线段CD的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/07a177d3-848f-4f25-a8fd-5edcdda2d017.png?resizew=166)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/07a177d3-848f-4f25-a8fd-5edcdda2d017.png?resizew=166)
A.![]() | B.10 | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】空间四边形
中,
,
,
,点
在
上,且
,
为
的中点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ac5f94e56c4679a32df00c5bb57964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63666d7cc3b50ada407f904098e163c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77e78c91e893f7759482b8de993020f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c3af75726a75b40bd23a5917144d71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5a82589fe45111743acf86cd8ba366.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐2】已知空间四边形
,其对角线为
,
,
,
分别是
,
的中点,点
在线段
上,且
,现用基底
表示向量
,有
,则
,
,
的值分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152e4452e348e6b992c9f17d5c784541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d56b9b87685a4a7aa516817f0a1937a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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A.![]() ![]() ![]() | B.![]() ![]() ![]() | C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次