名校
解题方法
1 . 如图,已知四棱锥
的底面是菱形,
交
于点O,E为
的中点,F在
上,
,
平面
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7171401b766d245215abf89674f3e892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb178784aa857d4d4683e650273f054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2024-04-19更新
|
730次组卷
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3卷引用:江西省南昌市第十九中学2021-2022学年高二下学期第一次月考数学试卷
江西省南昌市第十九中学2021-2022学年高二下学期第一次月考数学试卷(已下线)6.4 .1 直线与平面平行-同步精品课堂(北师大版2019必修第二册)吉林省实验中学2023-2024学年高一下学期5月期中考试数学试题
名校
2 . 如图所示四棱锥
,底面ABCD为直角梯形,
,
,
,
,
是底面ABCD内一点(含边界),
平面MBD,则点O轨迹的长度为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0046177466c78f08d45449dc5639bf38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e4f29e7892ac90cf9dcdd06fa86c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d6d03e83c2e2f6a03bf30dd1038dc6.png)
![](https://img.xkw.com/dksih/QBM/2022/1/26/2902665447546880/2916946144067584/STEM/66337424-081d-45b4-968b-6aa64db414b9.png?resizew=181)
您最近一年使用:0次
名校
解题方法
3 . 如图所示﹐在三棱柱
中,截面
与平面ABC交于直线a,则直线a与直线
的位置关系为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3636b407d8818e15891e18db47fa0c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
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2021-12-25更新
|
980次组卷
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4卷引用:江西省南昌大学附属中学2021-2022学年高二 4 月线上阶段检测数学(理)试题
江西省南昌大学附属中学2021-2022学年高二 4 月线上阶段检测数学(理)试题(已下线)8.5 空间直线、平面的平行人教A版(2019) 必修第二册 实战演练 第八章 课时练习27 直线与平面平行(已下线)8.5.2 直线与平面平行【第一练】“上好三节课,做好三套题“高中数学素养晋级之路
名校
解题方法
4 . 如图,长为4,宽为2的矩形纸片
中,
为边
的中点,将
沿直线
翻转至
(
平面
),若
为线段
的中点,则在
翻转过程中,下列正确的命题序号是___________ .
![](https://img.xkw.com/dksih/QBM/2021/6/1/2733490475786240/2744083904757760/STEM/eccaa97d288b4699b3b370b300e6458a.png?resizew=203)
①
平面
;
②异面直线
与
所成角是定值;
③三棱锥
体积的最大值是
;
④一定存在某个位置,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8588e18e27bfebf7c81c7e3c7efb1149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://img.xkw.com/dksih/QBM/2021/6/1/2733490475786240/2744083904757760/STEM/eccaa97d288b4699b3b370b300e6458a.png?resizew=203)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c70966a318ef8ecf874257f5c5e5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
②异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9666b03b544efac31b8f8ed7ddb7a427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c14ff9b66f21c05e52dc3c8908c2df.png)
④一定存在某个位置,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2181c78134c310f746eab44b9124e63b.png)
您最近一年使用:0次
2021-06-16更新
|
1019次组卷
|
6卷引用:江西师范大学附属中学2021-2022学年高二下学期第一次月考数学(理)试题
江西师范大学附属中学2021-2022学年高二下学期第一次月考数学(理)试题(已下线)考向34 空间中的垂直关系(已下线)第九章立体几何专练16—翻折问题-2022届高三数学一轮复习(已下线)第33讲 立体几何中的范围与最值问题-2022年新高考数学二轮专题突破精练安徽省滁州市凤阳县临淮中学2022届高三下学期5月月考理科数学试题内蒙古通辽新城第一中学2021届高三第二次增分训练数学(理)试题