名校
解题方法
1 . 如图,已知
为圆柱的母线,
为圆柱的下底面直径,
为线段
的中点,则点
到平面
的距离为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/0953a2b6-89ad-4772-9726-19bc6b698768.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905a25f50513c5514dc2fd096eb0cbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013e58ab92ebfc889e2e0e2be903792e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/0953a2b6-89ad-4772-9726-19bc6b698768.png?resizew=137)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 在如图所示的六面体
中,平面
平面
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/21f61f9a-b783-4036-bbd0-2caf6b6858b5.png?resizew=212)
(1)求证:
平面
;
(2)若AC,BC,
两两互相垂直,
,
,求点A到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35be3e32756bfd27e75963842b041f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617edf7f259f5955db7cad814af85281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c1faecb71c7a75462fd1bbb8874b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae757459584fea8509a845e0348d42a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7579755d7d17bd72d97b03df323aefa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a77424eb4fdca8e61b484eb5b4db5b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/21f61f9a-b783-4036-bbd0-2caf6b6858b5.png?resizew=212)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81fa367ec317fe2a30142e1c30cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b845b876f07c6578e80847cb3786f5c.png)
(2)若AC,BC,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96872cd6cd581ae8a861c7032e0257b4.png)
您最近一年使用:0次
2023-02-10更新
|
634次组卷
|
4卷引用:河南省安阳市2023届高三第一次模拟考试文科数学试题
名校
3 . 已知正方体
的棱长为
,过顶点
的平面为
,点
是平面
内的动点,
,则点
的轨迹长度等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271f262bd56a1f68f8bcaa2962264b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1e6b58ff38459412250d85a786d30a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-02更新
|
689次组卷
|
3卷引用:河南省安阳市第一中学2022-2023学年高二上学期第一次阶段考试理科数学试题