如图,正方体
的棱长为3,动点
在侧面
内运动(含边界),且
,则( )
![](https://img.xkw.com/dksih/QBM/2023/6/1/3250223900426240/3251589036793856/STEM/b59bb38699b345c5af81553c45c8b81c.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac375691057e98d91d7d823959a36bee.png)
![](https://img.xkw.com/dksih/QBM/2023/6/1/3250223900426240/3251589036793856/STEM/b59bb38699b345c5af81553c45c8b81c.png?resizew=159)
A.点![]() ![]() | B.点![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
22-23高一下·河南商丘·阶段练习 查看更多[4]
河南省商丘市实验中学2022-2023学年高一下学期5月月考数学试题陕西省西安市黄河中学等2022-2023学年高一下学期第二次联考数学试题(已下线)模块三 题型突破篇 小题满分挑战练(3) (北师大版)(已下线)专题突破卷21 立体几何的轨迹问题
更新时间:2023-06-03 09:57:44
|
相似题推荐
多选题
|
适中
(0.65)
名校
解题方法
【推荐1】如图,在矩形
中,点B,C,D与点
,
,
分别是线段
与
的四等分点,且
.若把矩形
卷成以
为母线的圆柱的侧面,使线段
,
重合,则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5bb280919fefd301bcc544e9c7c65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bffa525a5cdd7df54b4ba1425831426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30014e714eefffc004cb3ccb4143d54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5bb280919fefd301bcc544e9c7c65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a667900b37d61c8e5b86d2dca625283.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/30/e8be240a-4727-4e16-b3ac-3371cac6b2a4.png?resizew=202)
A.直线![]() ![]() | B.直线![]() ![]() |
C.直线![]() ![]() | D.直线![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
【推荐2】如图,AB为圆柱的母线,BD为圆柱底面圆的直径且
,O为AD中点,C在底面圆周上滑动(不与B,D重合).则下列结论中正确的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/12/c173d330-fef1-4320-a73c-f430a8d7f5dd.png?resizew=216)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ad919a6c21e599494997a6d0428b95.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/12/c173d330-fef1-4320-a73c-f430a8d7f5dd.png?resizew=216)
A.BO有可能垂直平面ACD |
B.三棱锥![]() |
C.二面角![]() ![]() |
D.过CD作三棱锥![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
解题方法
【推荐1】已知棱长为1的正方体
中,
为正方体内及表面上一点,且
,其中
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3c482b1fc72806cc615656c13d4c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bc584ad930b670e2e46cf1173d4995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aadae85764946eca7b6dac1f03fed7c.png)
A.当![]() ![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() ![]() |
C.当![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
解题方法
【推荐2】已知正方体
的棱长为2,
分别是边
的中点. 下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd694ad3a4733c7c84aaa7946aeea4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa67bd9c7e7d07b7c0689cb553ae5ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fa2b43c5ddafa2e07effce8da48131.png)
A.![]() |
B.三棱锥![]() |
C.三棱锥![]() ![]() |
D.以![]() ![]() ![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
【推荐1】在棱长为1的正方体
中,若点
为四边形
内(包括边界)的动点,
为平面
内的动点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4cd2b33bd983a9ed6575b9de04a46a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.若![]() ![]() ![]() |
B.若直线![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若正方体![]() ![]() ![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
解题方法
【推荐2】在棱长为1的正方体
中,
在侧面
(含边界)内运动,
在底面
(含边界)内运动,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.若直线![]() ![]() ![]() |
B.若直线![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次