名校
解题方法
1 . 如图,在斜三棱柱
中,
是
的中点,
平面
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/d0965977-06d8-472a-8070-c2e95c7690b8.png?resizew=224)
(1)求证:
⊥平面
;
(2)若
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e5981445b6f2a6c58974158d96a4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e89a358226b4be8786077a60555c69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ea8821d44ee1f9332096263e7508e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/d0965977-06d8-472a-8070-c2e95c7690b8.png?resizew=224)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc9ffc43a56921fe79f8602636b8b0f.png)
您最近一年使用:0次
名校
解题方法
2 . 四棱锥P﹣ABCD中,面PAD⊥面ABCD,AB∥CD且AB⊥AD,PA=CD=2AB=2,AD=PD=
.E为PB中点.
![](https://img.xkw.com/dksih/QBM/2021/4/13/2698822586146816/2772807465926656/STEM/a3bf0d6d-3c15-429c-8b67-9b47a0b09aaf.png)
(1)求证:PA⊥面CDE;
(2)求点E到面PCD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2021/4/13/2698822586146816/2772807465926656/STEM/a3bf0d6d-3c15-429c-8b67-9b47a0b09aaf.png)
(1)求证:PA⊥面CDE;
(2)求点E到面PCD的距离.
您最近一年使用:0次
2021-07-26更新
|
413次组卷
|
5卷引用:江西省南昌市第十中学2021届高三下学期第一次月考数学(文)试题
江西省南昌市第十中学2021届高三下学期第一次月考数学(文)试题江西省丰城市第九中学2022届高三(日新部)上学期第一次月考数学(文)试题安徽省安庆市2021届高三下学期一模文科数学试题(已下线)专题29 立体几何(解答题)-2021年高考数学(文)二轮复习热点题型精选精练河南省示范性高中2021-2022学年高三下学期阶段性模拟联考三文科数学试题
名校
解题方法
3 . 如图,正三棱柱
的棱长均为2,M是侧棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/bc0b7dcd-31ec-4425-b82f-6dca32965018.png?resizew=148)
(1)在图中作出平面
与平面
的交线l(简要说明),并证明
平面
;
(2)求点C到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/bc0b7dcd-31ec-4425-b82f-6dca32965018.png?resizew=148)
(1)在图中作出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed2f706801662432b68797e72647c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9df740160690029ac1e730c85f20347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8b5a6dbcf05f572f83f51abf7d668c.png)
(2)求点C到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed2f706801662432b68797e72647c6e.png)
您最近一年使用:0次
2021-01-29更新
|
1454次组卷
|
7卷引用:江西省宜春市万载中学2021-2022学年高一下学期第二次月考数学(文)试题
江西省宜春市万载中学2021-2022学年高一下学期第二次月考数学(文)试题辽宁省大连市第一中学2020-2021学年高一下学期6月月考数学试题贵州省贵阳市普通中学2021届高三上学期期末监测考试数学(文)试题(已下线)专题06 空间中的平行与垂直-备战2021届高考数学(理)二轮复习题型专练?(通用版)(已下线)专题06 空间中的平行与垂直-备战2021届高考数学(文)二轮复习题型专练?(通用版)(已下线)专题11.3空间中的垂直关系(B卷提升篇)-2020-2021学年高一数学必修第四册同步单元AB卷(新教材人教B版)辽宁省大连市庄河市高级中学2021-2022学年高二上学期开学考试数学试题
4 . 如图,四面体
中,
是正三角形,
是直角三角形,
,
.
![](https://img.xkw.com/dksih/QBM/2021/1/6/2630241766301696/2632997035745280/STEM/d4a94edf5fe24d39a8d4ab2cb398cc82.png?resizew=227)
(1)证明:平面
平面
;
(2)设
长为
点
为
的中点,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecb138a844ef11bb3214cff0a475c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://img.xkw.com/dksih/QBM/2021/1/6/2630241766301696/2632997035745280/STEM/d4a94edf5fe24d39a8d4ab2cb398cc82.png?resizew=227)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5acfec5d67effe48ac7fc85520a70edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
2021-01-10更新
|
1469次组卷
|
4卷引用:江西省峡江中学2021-2022学年高二10月第一次段考数学(理)试题
江西省峡江中学2021-2022学年高二10月第一次段考数学(理)试题河南省郑州市2020-2021学年高三上学期第一次质量检测文科数学试题(已下线)专题09 立体几何(测)-2021年高考数学二轮复习讲练测(文科)(文理通用)(已下线)文科数学-学科网2021年高三1月大联考考后强化卷(新课标Ⅰ卷)
5 . 如图,在四棱锥
中,四边形
是直角梯形,
,
,
为等边三角形.
![](https://img.xkw.com/dksih/QBM/2021/5/29/2731336569552896/2782487578140672/STEM/7f6aefc1e15a450faef0444c0f45cec6.png?resizew=210)
(1)证明:平面
平面
;
(2)若
的面积为
,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/b566b814612351e083f5c8b218319dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e32e6fa4030411db9bc4626b8c695f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36aae82d53f2a35d2f95f467bd5b76cf.png)
![](https://img.xkw.com/dksih/QBM/2021/5/29/2731336569552896/2782487578140672/STEM/7f6aefc1e15a450faef0444c0f45cec6.png?resizew=210)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a3fd5284e160896f07ce367645fd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
名校
解题方法
6 . 四棱锥
中,
平面
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/3ee80563-15d8-424a-91fd-fee8f3ad9131.png?resizew=144)
(1)求证:
;
(2)
为
中点,求
到平面
的距离.
![](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/829018a6ca0aff95d89e3f7cd943274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62526e69e7c4e59d9df8a5b2c2426400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/3ee80563-15d8-424a-91fd-fee8f3ad9131.png?resizew=144)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d50a68fed1c23837d1267bdda5c1962.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
2021-05-16更新
|
1055次组卷
|
4卷引用:江西省南昌市进贤县第一中学2020-2021学年高二下学期第二次月考数学(文)试题
名校
解题方法
7 . 如图,四边形
是正方形,
平面
,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b21876717f7a9ba0f0b179ce2aa669c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/49ff9432-c251-46ca-80f8-9e3ddb170c04.png?resizew=182)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39967d6f3aed6ce7b6643787795d451d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87e02bff18fba8e9c81de467da297c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b21876717f7a9ba0f0b179ce2aa669c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/49ff9432-c251-46ca-80f8-9e3ddb170c04.png?resizew=182)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba8f7af0e091e082100c3cd7f8c487f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2481914354c3cdb36c1ada923d5b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4718378fec39801c6efa758cb819faa1.png)
您最近一年使用:0次
2020-11-12更新
|
1369次组卷
|
3卷引用:江西省吉水中学2020-2021学年高二上学期数学(文)月考试题
8 . 在斜三棱柱
中,
,
平面
,E,F分别是
,
的中点.
![](https://img.xkw.com/dksih/QBM/2021/5/7/2716118902046720/2718099499622400/STEM/4979b066-68f8-4f92-b04c-5d7c624eaaae.png?resizew=287)
(1)求证:
平面
;
(2)已知
,斜三棱柱
的体积为8,求点E到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89195bacd53d43195e70c12b5cfa041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/2021/5/7/2716118902046720/2718099499622400/STEM/4979b066-68f8-4f92-b04c-5d7c624eaaae.png?resizew=287)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d37730e89acf607fc2559f43e92b0c8.png)
您最近一年使用:0次
2021-05-10更新
|
1122次组卷
|
4卷引用:江西省九江第一中学2021届高三5月适应性考试数学(文)试题
名校
解题方法
9 . 已知平面四边形
中,
,
,现将
沿
折起,使得点
移至点
的位置(如图),且
.
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712413680951296/2715392182124544/STEM/4012a015b4084cccbb6997b0b106a3a5.png?resizew=187)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712413680951296/2715392182124544/STEM/349dae50c2c745009855d3ad0bcbc7e9.png?resizew=177)
(1)求证:
;
(2)若
为
的中点,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2539dc18fc736983e69dcc4a2b2f93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed66431681da1db8f7cb0f40cd19201.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712413680951296/2715392182124544/STEM/4012a015b4084cccbb6997b0b106a3a5.png?resizew=187)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712413680951296/2715392182124544/STEM/349dae50c2c745009855d3ad0bcbc7e9.png?resizew=177)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0530f462e5ec1e58c46e1f7644d0cc21.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68a7bf0da4f7c6f739d2e2461ad9b7.png)
您最近一年使用:0次
2021-05-06更新
|
761次组卷
|
3卷引用:江西省贵溪市实验中学高中部2020-2021学年高一下学期第三次月考数学试题
江西省贵溪市实验中学高中部2020-2021学年高一下学期第三次月考数学试题安徽省蚌埠市2021届下学期高三第三次教学质量检查文科数学试题(已下线)专题10 空间位置关系的判断与证明-2022年高考数学毕业班二轮热点题型归纳与变式演练(新高考专用)
10 . 如图,在四棱锥
中,
为菱形,
平面
,连接
,
交于点O,
,
,E是棱
上的动点,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/2e4fceb3-ad96-41d1-8489-548a86b029a6.png?resizew=161)
(1)求证:平面
平面
;
(2)当
面积的最小值是6时,求此时点E到底面
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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/2e4fceb3-ad96-41d1-8489-548a86b029a6.png?resizew=161)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07fbad473c16df3ff62c1c6b37de6aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2020-11-24更新
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343次组卷
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3卷引用:江西省遂川中学2021-2022学年高二上学期第三次月考数学(文)试题(A卷)