名校
解题方法
1 . 如图,在四棱锥
中,底面
是矩形,其中
,
,
底面
,
,
为
的中点,
为
的中点.
(1)证明:直线
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a5faf3cbb633fc4294c8ce703c64c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4317430d5a2b61d9a2a88b73e7d7ad39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/6/68e9d843-fc85-4db1-837e-3af70dd6a431.png?resizew=144)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3201d3796ed9a29338aac25245a7c8e2.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3201d3796ed9a29338aac25245a7c8e2.png)
您最近一年使用:0次
2023-10-18更新
|
820次组卷
|
2卷引用:四川省成都市金牛区成都七中万达学校2023-2024学年高三上学期期中文数试题
名校
2 . 图,在棱长为2的正方体
中,点E,F分别是线段AC,
上的动点,
,
,且
.记
与
所成角为
,
与平面
所成角为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a64f1d0b5e4a6ebf4405b98a21a1ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2424068d330c491cff2f947e7b5ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf89344ded4d4ebb94edf2b8d42ed8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.当![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.对于任意![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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2023-09-07更新
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942次组卷
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4卷引用:四川省眉山市东坡区多悦高级中学校等2023-2024学年高二上学期期中联考数学试题
四川省眉山市东坡区多悦高级中学校等2023-2024学年高二上学期期中联考数学试题江苏省苏州市2024届高三上学期期初调研考试数学试题(已下线)通关练07 空间向量与立体几何章末检测(二)- 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)广东省广州市广东实验中学2024届高三下学期教学情况测试(二)数学试卷B
名校
3 . 已知
、
是两个不同的平面,
、
是两条不同的直线,则下列命题中不正确 的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-12-21更新
|
380次组卷
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7卷引用:四川省巴中绵实外国语学校2022-2023学年高二上学期期中考试数学试题
名校
解题方法
4 . 如图所示,在正四棱锥
中,E,M,N分别是BC,CD,SC的中点,动点P在线段MN上运动(与点M,N均不重合)时,给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/c8d60969-1816-49ac-a27e-5b7b4a068ca6.png?resizew=179)
①EP⊥AC;②EP
BD;③EP
平面SBD;④EP⊥平面SAC.其中恒成立的结论为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/c8d60969-1816-49ac-a27e-5b7b4a068ca6.png?resizew=179)
①EP⊥AC;②EP
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
A.①③ |
B.②④ |
C.①③④ |
D.②③④ |
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2022-11-23更新
|
280次组卷
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2卷引用:四川省遂宁中学校2022-2023学年高二上学期期中考试数学(理)试题
名校
5 . 在长方体
中,
,
,点
为侧面
内一动点,且满足
平面
,当
取最小值时,三棱锥
的所有顶点均在球
的球面上,则球
的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ececd428cc1a2afe8ee8a6b14b726cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d901e6127c96d778f1451bb98a49c962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c407eeb34204a1df967b8fbe481cb04d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7462cd3e7522c4fec73e5b0e7c7b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-02更新
|
633次组卷
|
2卷引用:四川省泸县第四中学2022-2023学年高二上学期期中考试数学(理)试题
21-22高一下·浙江·期中
6 . 已知三棱锥
中,△ABC,△ACD都是等边三角形,
,E,F分别为棱AB,棱BD的中点,G是△BCE的重心.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/4c768d18-52ee-428a-958c-36eeb689cbf2.png?resizew=196)
(1)求异面直线CE与BD所成角的余弦值;
(2)求证:FG
平面ADC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b94651d11df3a469d7ac72e6ac74c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/4c768d18-52ee-428a-958c-36eeb689cbf2.png?resizew=196)
(1)求异面直线CE与BD所成角的余弦值;
(2)求证:FG
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
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名校
7 . 如图,三棱柱
中侧棱与底面垂直,且
,
,
,M,N,P,D分别为
,BC,
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/83254c6e-4fd1-49a1-84d0-f549b8705b78.png?resizew=220)
(1)求证:
面
;
(2)求平面PMN与平面
所成锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/83254c6e-4fd1-49a1-84d0-f549b8705b78.png?resizew=220)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc027de6ca8c118ed6ccd52eae99a821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(2)求平面PMN与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
您最近一年使用:0次
2022-06-05更新
|
1840次组卷
|
6卷引用:四川省成都市蓉城高中教育联盟2021-2022学年高二下学期期中考试理科数学试题
四川省成都市蓉城高中教育联盟2021-2022学年高二下学期期中考试理科数学试题河北省石家庄市第二中学2022届高三下学期高考考前模拟数学试题(已下线)2022年全国新高考II卷数学试题变式题13-16题江苏省镇江第一中学2021-2022学年高二下学期期末数学试题(已下线)2022年全国新高考II卷数学试题变式题20-22题辽宁省沈阳市东北育才学校科学高中部2021-2022学年高三下学期最后一次模拟数学试题
解题方法
8 . 如图所示,正方形ADEF与梯形ABCD所在的平面互相垂直,已知
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/73e79a0f-8581-4fa1-a9e6-d307229998c3.png?resizew=215)
(1)求证:
平面
;
(2)连接
,求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffda707068a4a1778e79da6f20fb86d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/73e79a0f-8581-4fa1-a9e6-d307229998c3.png?resizew=215)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ccd4181f956f6e0140bf0ab8f0716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
您最近一年使用:0次
2022-05-07更新
|
594次组卷
|
3卷引用:四川省成都市郫都区2021-2022学年高二下学期期中考试文科数学试题
2022高三·河北·专题练习
名校
解题方法
9 . 已知四棱锥
如图所示,
,
,
,平面
平面
,点
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/2021/9/29/2818542764204032/2819401981984768/STEM/a716b7178d1349b2a609e342b1516685.png?resizew=219)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ea5d7cfb1712e1aad407159c3fc6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ff67dbfe0050270169791ae85ef940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ce5e00b89a3cd9c39d45c13a0afed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448cbac9a1ef3de7538a6b30cdc39582.png)
![](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/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://img.xkw.com/dksih/QBM/2021/9/29/2818542764204032/2819401981984768/STEM/a716b7178d1349b2a609e342b1516685.png?resizew=219)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78172568aac9805d2ea2d5f742bf80c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee4a6b8ef3e79b4482388c3391d8b18.png)
您最近一年使用:0次
2021-09-30更新
|
497次组卷
|
3卷引用:四川省遂宁中学校2021-2022学年高二上学期期中考试数学(理)试题
四川省遂宁中学校2021-2022学年高二上学期期中考试数学(理)试题(已下线)一轮复习大题专练48—立体几何(距离问题2)—2022届高三数学一轮复习河南省中原名校2021-2022学年高二上学期12月联考理科数学试题
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10 . 四棱锥
中,底面是边长为
的菱形
,
,
平面
,且
,
是边
的中点,动点
在四棱锥
表面上运动,并且总保持
平面
,则动点
的轨迹周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce64044898d0460aac161d93a455304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bc5d8308a060d6068cfc9f69fe79e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc6f6dfdbe7d39891c35f67e1a95c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次