1 . 如图,在四棱锥
,四边形
正方形,
平面
.
,
,点
是
的中点.
平面
;
(2)求点
到平面
的距离.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967f74b8993c61634ceed95edca05ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
您最近一年使用:0次
2022-07-20更新
|
1861次组卷
|
7卷引用:江西省南昌市第十九中学2023届高三上学期第四次月考(11月)文科数学试题
江西省南昌市第十九中学2023届高三上学期第四次月考(11月)文科数学试题云南省保山市2021-2022学年高一下学期期末质量监测数学试题(已下线)第09讲 立体几何与空间向量 章节总结 (讲)-2(已下线)专题5 综合闯关(基础版)(已下线)7.4 空间距离(精练)山东省日照市2022-2023学年高一下学期期末校际联合考试数学试题广东省佛山市南海区狮山石门高级中学2023-2024学年高二上学期10月月考数学试题
2 . 如图,在四棱锥PABCD中,平面PAD⊥平面
,
为等边三角形,底面
为梯形,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/5/13/2978280679907328/2979718243336192/STEM/4dd892c7-fb66-44c6-b76f-d8e09a830f84.png?resizew=161)
(1)若
为
的中点,求证:
平面
;
(2)求点
与平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da7bcea5a45eeae211f5851f12a7517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8c12a6be7d9ec81631aca2c2b5074a.png)
![](https://img.xkw.com/dksih/QBM/2022/5/13/2978280679907328/2979718243336192/STEM/4dd892c7-fb66-44c6-b76f-d8e09a830f84.png?resizew=161)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df8b5eef5063378d7b12ffd780a4e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,已知四棱锥
中,底面
是边长为2的菱形,
,
底面
,
,点
是
的中点.
面
;
(2)求
到平面
的距离.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97aa4983cbe775555358812593615a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
您最近一年使用:0次
2022-05-12更新
|
1268次组卷
|
4卷引用:江西省赣州市第三中学2022届高三适应性考试(二)数学(文)试题
名校
解题方法
4 . 如图,四棱锥
的底面是边长为1的正方形,侧棱
底面
,且
是侧棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/469a2129-56e2-484c-acb8-a05b1ebb6f0b.png?resizew=155)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea8d2307fa112f07f830e179cd31d879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/469a2129-56e2-484c-acb8-a05b1ebb6f0b.png?resizew=155)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fade3679dc07f7027642d630dea9de.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,四棱锥
中,侧面
是边长为
的正三角形,且与底面垂直,底面
是
的菱形,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/cc426f55-5d4e-429f-b17c-54201cc1b801.png?resizew=237)
(1)求证:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/cc426f55-5d4e-429f-b17c-54201cc1b801.png?resizew=237)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8db2bec6ebe672e8f83f24e9bdf4654.png)
您最近一年使用:0次
解题方法
6 . 如图,
是边长为2的等边三角形,
且
,
,平面
平面
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/7/2974417907589120/2975171814629376/STEM/d0d68c93-7922-4a7e-8cf3-a229901059ba.png?resizew=174)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b41f2f95d643629321deb6e905c4f1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2c65f007e2fb471330f15475c5a2f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4340375ca8abdbd6998760c944f38d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306b9504b52df5ad6697fa87200e8a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2022/5/7/2974417907589120/2975171814629376/STEM/d0d68c93-7922-4a7e-8cf3-a229901059ba.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
您最近一年使用:0次
解题方法
7 . 如图,在三棱锥
中,
,点D是棱
的中点.
![](https://img.xkw.com/dksih/QBM/2022/1/22/2899907775348736/2921167411814400/STEM/fd1e8f0d-a3a6-446e-9983-6ab9d71717d5.png?resizew=168)
(1)求证
;
(2)若
,点E在棱
上,且
,求点C到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee5a6d7e06b468a8921835d10c44a827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2022/1/22/2899907775348736/2921167411814400/STEM/fd1e8f0d-a3a6-446e-9983-6ab9d71717d5.png?resizew=168)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65334978b0519b379910dfc4acf8344.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f60c68102af27fbf7a443be683e733d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73c8c1d2ba6b29b301380a45dfbcdd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37793a3a810e823e10c340986f55ddd.png)
您最近一年使用:0次
解题方法
8 . 如图,在四棱锥
中,底面
为矩形,点E在棱
上,
底面
,
.
,证明:
;
(2)若点D到平面
的距离为
,求
的长.
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db807b09cc550f476b3f8fa0c6a14425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd51e8f8b1b978b5e2b8084e124fd75c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe308dcc38f31d52a77ee65bb00dd88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbd7c2767c106faf27d6a97ebc8e739.png)
(2)若点D到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在三棱柱
中,
,点
是
的中点.
![](https://img.xkw.com/dksih/QBM/2022/7/6/3016899180773376/3018809350897664/STEM/a31f5468fbeb4aecadff39c0524eb1a9.png?resizew=159)
(1)求证:
平面
;
(2)若侧面
为菱形,求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0eaaf09c259101cd5cff41a23801b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2022/7/6/3016899180773376/3018809350897664/STEM/a31f5468fbeb4aecadff39c0524eb1a9.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4557a368725226f2c8ea2efb7d30e478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc7e774e4ae40c23bf4ceed179230ca.png)
(2)若侧面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1d2e0f281222a5f289ea4008370aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
您最近一年使用:0次
2022-07-09更新
|
3389次组卷
|
10卷引用:江西省宜春市铜鼓中学2022-2023学年高二上学期开学考试数学试题
江西省宜春市铜鼓中学2022-2023学年高二上学期开学考试数学试题江西省赣州市赣县第三中学2022-2023学年高二上学期开学考试数学试题广东省珠海市2021-2022学年高一下学期期末数学试题(A组)(已下线)第04讲 空间直线、平面的垂直 (高频考点—精讲)-1(已下线)第八章 立体几何初步 讲核心 02(已下线)7.2 空间几何中的垂直(精练)(已下线)专题强化一 线面、面面的平行和垂直位置关系-《考点·题型·技巧》广东省东莞市东莞市七校联考2022-2023学年高一下学期期中数学试题(已下线)期末专题09 立体几何大题综合-【备战期末必刷真题】新疆喀什市第十中学2022-2023学年高一下学期期末质量监测模拟数学试题
名校
10 . 如图,在三棱柱
中,所有棱长均为
.
![](https://img.xkw.com/dksih/QBM/2022/3/23/2942537901555712/2943933300137984/STEM/c8f9e0e7416d48fdaa590a0f24436a6f.png?resizew=174)
(1)证明:平面
平面
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d6fca51a92ac9661030a795657fc58.png)
![](https://img.xkw.com/dksih/QBM/2022/3/23/2942537901555712/2943933300137984/STEM/c8f9e0e7416d48fdaa590a0f24436a6f.png?resizew=174)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df00cdf77ed39ca5a0b305861a693142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ffdb9543ecf8a3bcdd2e09c2d4e9a8.png)
您最近一年使用:0次
2022-03-25更新
|
1599次组卷
|
5卷引用:江西省萍乡市芦溪中学2023届高三上学期开学考数学(文)试题