名校
1 . 如图,已知正方体
的棱长为3,点
分别在棱
上,满足
,点
在正方体的面
内,且
平面
,则线段
长度的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a438de4d260b84dfde7d0fd492b9c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c74ce7227f6d1f180daaf6b83abb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738b4cd3d2e93767d70f96e8be8918bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae80f09dae8acbe1e5e27bd5c4d8164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e935bb9d7b7115429edbd1e7469af65.png)
A.![]() | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
2 . 如图,A为平面
内一定点,
外一定点B在
内的射影为M.求平面
变动时点M的轨迹.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/25/f2b37605-2028-4ae8-b35b-14824928f410.png?resizew=165)
您最近一年使用:0次
名校
解题方法
3 . 已知四棱锥
的底面为矩形,
平面ABCD,点Q为侧棱PA(不含端点的线段)上动点,则点Q在平面
上的射影在( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
A.棱PB上 | B.![]() | C.![]() | D.不确定 |
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4 . 三棱锥
中,
,
,
为
内部及边界上的动点,
,则点
的轨迹长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0b01b7e1749c1e99b0baa8f2cdbddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6232b398a6b2dd1fd5f4bb71af1afe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbddb854a1a634484936c64ab4a9102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-21更新
|
698次组卷
|
3卷引用:四川省南充市2024届高三高考适应性考试(二诊)理科数学试题
2024高三·全国·专题练习
5 . 在四棱柱
中,已知侧棱
底面
,
为底面
上的动点.当
的面积为定值
时,点
在底面
上的运动轨迹为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddbb0422a136f45653c8c369f2d75fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce12b494899a2b93ea9c94b8abde0c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbbecaad3655f531774cb4911840dc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.椭圆 | B.双曲线 | C.抛物线 | D.圆 |
您最近一年使用:0次
2024高三·全国·专题练习
6 . 求到空间中直线及直线外一点
距离相等的点的轨迹.
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2024高三·全国·专题练习
7 . 求到空间中三点距离相等的点的轨迹.
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2024高三·全国·专题练习
8 . 如图,在长方体
中,
,
,
为
中点,
为矩形
内的动点
包括边界
,且
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/b5008a7b-5111-42dd-95a9-dc93f21745ef.png?resizew=149)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37750daa8ba3b3fe3e9e2092f81c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c52091eb745de866044477641a7c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce08128582a7e855852c03e0ac5d0487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8c94316312f093ebfc80b872a83c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/652f27b965cd841d72312d2aab1c0a22.png)
![](https://img.xkw.com/dksih/QBM/2024/1/31/3423234318589952/3423372185886720/STEM/e7003939f1d94fa9bb3bad4b3e4813e7.png?resizew=4)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/b5008a7b-5111-42dd-95a9-dc93f21745ef.png?resizew=149)
A.点![]() |
B.点![]() |
C.点![]() ![]() ![]() ![]() |
D.点![]() ![]() |
您最近一年使用:0次
9 . 在棱长为2的正方体
中,Q为正方形
内一动点(含边界),若
,则Q点的轨迹长度为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5e9bf7536a8512ef10452ab5dda5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d372bf95171aa388f1afa07ed65acaf5.png)
您最近一年使用:0次
2024-02-18更新
|
113次组卷
|
2卷引用:【名校面对面】2022-2023学年高三大联考(3月)文数试题
名校
10 . 在棱长为1的正方体
中,E在棱
上且满足
,点F是侧面
上的动点,且
面AEC,则动点F在侧面
上的轨迹长度为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd19c53dccc2a4ff960bedd49a87d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf55043d616833f4a69e0386b03711b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
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