名校
1 . 如图,将一副三角板拼成平面四边形,将等腰直角
沿
向上翻折,得三棱锥
,设
,点
分别为棱
的中点,
为线段
上的动点,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/d548f761-99eb-45d1-bbe8-79e4562b9f95.png?resizew=412)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2013303974d530fce9a9930938f4c2b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/d548f761-99eb-45d1-bbe8-79e4562b9f95.png?resizew=412)
A.不存在某个位置,使![]() |
B.存在某个位置,使![]() |
C.当三棱锥![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2023-04-03更新
|
1437次组卷
|
5卷引用:山东省潍坊市安丘市2023届高三下学期3月份过程检测数学试题
名校
解题方法
2 . 已知
为圆锥
底面圆
的直径(
为顶点,
为圆心),点
为圆
上异于
的动点,
,则下列结论正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/003f58d65ae38f840e773aafbcf303c7.png)
A.圆锥![]() ![]() |
B.![]() ![]() |
C.若![]() ![]() ![]() |
D.过该圆锥顶点![]() ![]() |
您最近一年使用:0次
2023-02-10更新
|
1200次组卷
|
5卷引用:山东省滨州市邹平市第一中学2023届高三5月数学模拟试题