名校
解题方法
1 . 如图,在三棱柱
中,侧面
是矩形,
,
,
,
,E,F分别为棱
,
的中点,G为线段
的中点.
![](https://img.xkw.com/dksih/QBM/2022/3/3/2928352578969600/2932414839963648/STEM/db7e9532-8209-4976-8a4e-67e95d7baf3b.png?resizew=186)
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404005c9bb408214fe5bafee7507e175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/2022/3/3/2928352578969600/2932414839963648/STEM/db7e9532-8209-4976-8a4e-67e95d7baf3b.png?resizew=186)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874acc16deb1b13c54d8f9ee2ad09922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa65390a9de5c309ff4e3f346faa093.png)
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名校
解题方法
2 . 已知四棱锥S-ABCD的底面是边长为2的正方形,AC、BD相交于点O,
面
,
, E是BC的中点,动点P在该棱锥表面上运动,并且总保持
, 则动点P的轨迹的周长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d30637da200a07672ae231b4c5c09cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a727432fbf5b502786cdb18b84b8920.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc56fdf70e65bd88980c64af96b83da.png)
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名校
解题方法
3 . 如图,四棱锥P﹣ABCD的底面是平行四边形,∠ABC=120°,AB=1,BC=4,PA=4
,M,N分别是BC,PD的中点,PD⊥DC,PM⊥MD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/a64b39f0-86f8-40f4-9385-55513fb62988.png?resizew=184)
(1)证明:
平面PAB;
(2)证明:DC⊥平面PDM;
(3)求四棱锥P﹣ABCD的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/a64b39f0-86f8-40f4-9385-55513fb62988.png?resizew=184)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
(2)证明:DC⊥平面PDM;
(3)求四棱锥P﹣ABCD的体积.
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名校
解题方法
4 . 如图,四棱锥
中,四边形
为菱形,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/eff6de9e-9dba-4f36-8969-9543d3c37bcd.png?resizew=152)
(1)证明:
平面
;
(2)求点
到平面PBC的距离h.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea5d51ba341d1932dbf76f3d685a3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967f74b8993c61634ceed95edca05ffd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/eff6de9e-9dba-4f36-8969-9543d3c37bcd.png?resizew=152)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2022-02-26更新
|
495次组卷
|
5卷引用:黑龙江省铁力市第一中学2021-2022学年高三上学期开学考试数学(文)试题
名校
解题方法
5 . 在四棱锥P—ABCD中,平面PAB⊥平面ABCD,∠ABC=∠BCD=90°,PC=PD,PA=AB=BC=1,CD=2.
![](https://img.xkw.com/dksih/QBM/2021/12/22/2878188120391680/2917523442221056/STEM/fa3483a1-e42e-4020-99e1-f7c09afe43a2.png?resizew=185)
(1)证明:PA⊥平面ABCD;
(2)求点C到平面PBD的距离.
![](https://img.xkw.com/dksih/QBM/2021/12/22/2878188120391680/2917523442221056/STEM/fa3483a1-e42e-4020-99e1-f7c09afe43a2.png?resizew=185)
(1)证明:PA⊥平面ABCD;
(2)求点C到平面PBD的距离.
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2022-02-16更新
|
261次组卷
|
5卷引用:黑龙江省哈尔滨市第一中学校2021-2022学年高三上学期期末考试数学(文)试题
名校
6 . 已知正方体
的棱长为
,点
分别为棱
的中点,则下列结论中正确的序号是___________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4966a260-bdac-42e0-aced-62e4e0dd6e3c.png?resizew=171)
①过
三点作正方体的截面,所得截面为正六边形;
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
平面
;
③
平面
;
④四面体
的体积等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029ed096f249bfec4420d746e9a3d292.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4966a260-bdac-42e0-aced-62e4e0dd6e3c.png?resizew=171)
①过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4645450a006f2c20087486d0833afbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cfdc6224181d44e63aab43ddaf07ef.png)
④四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ac02c2f91cadb1e328bc6ab9b9c491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aec67c4c83e4955f36ec34afb19df83.png)
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2022-01-06更新
|
1696次组卷
|
6卷引用:黑龙江省哈尔滨市第六中学2021-2022学年高三上学期期末考试数学(理)试题
黑龙江省哈尔滨市第六中学2021-2022学年高三上学期期末考试数学(理)试题(已下线)专题10 立体几何线面位置关系及空间角的计算(练)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)专题09立体几何线面位置关系及面积体积计算问题(练)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》(已下线)专题29 空间点、直线、平面之间的位置关系-4北京市西城区北京师范大学附属中学2021-2022学年高一下学期期末考试数学试题广东省汕尾市华大实验学校2022-2023学年高一下学期5月月考数学试题
7 . 如图,四棱锥P-ABCD的底面是平行四边形,
,AB=1, BC=PA=4,M、N分别是BC、PC的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/d46dae34-d7ad-4efa-9873-3bd88fd5a223.png?resizew=187)
(1)证明:
//平面PAB;
(2)证明:
平面PDM;
(3)求四棱锥P-ABCD的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aedf65d7d930fdb972d4802c0dea8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a8b76f93f1609f49e5d85fd8b5db004.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/d46dae34-d7ad-4efa-9873-3bd88fd5a223.png?resizew=187)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
(3)求四棱锥P-ABCD的体积.
您最近一年使用:0次
名校
解题方法
8 . 如图,在棱长为2的正方体
中,E为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/eec59c7f-8261-40e3-bf2c-3911f05f16f8.png?resizew=177)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/eec59c7f-8261-40e3-bf2c-3911f05f16f8.png?resizew=177)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5830646a912c3a916beac4f88c116b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32eeb37ce111a0c102f7a5cde6875b37.png)
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2021-11-13更新
|
1713次组卷
|
4卷引用:黑龙江省大庆铁人中学2021-2022学年高三上学期第一次月考数学(文)试题
名校
解题方法
9 . 如图,在长方体
中,底面ABCD是边长为1的正方形,
,点E,F分别为棱
,
的中点.
![](https://img.xkw.com/dksih/QBM/2021/10/19/2832845294944256/2834139454808064/STEM/565caf63-2f91-4d31-828b-857b9e20be01.png?resizew=213)
(1)求证:
平面BDE;
(2)求直线
到平面BDE的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/2021/10/19/2832845294944256/2834139454808064/STEM/565caf63-2f91-4d31-828b-857b9e20be01.png?resizew=213)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf55043d616833f4a69e0386b03711b.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408871c2b71ef88d6f556ce53cf73cc9.png)
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2021-10-21更新
|
429次组卷
|
3卷引用:黑龙江省龙西北八校联合体2022-2023学年高二上学期第一次月考数学试题
名校
10 . 正方体
棱长为
,若
是空间异于
的一个动点,且
,,若
,则点
到直线
的最短距离为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5db37b540ad167a0970ce7e4e422b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/036de574712cad14bddadf6653c7e714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/2021/10/3/2821623249035264/2823422122065920/STEM/cc108f322ea64c6f96accb2e328d59a4.png?resizew=171)
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