名校
解题方法
1 . 如图所示,在四棱锥
中,
平面
,
是线段
的中垂线,
与
交于点
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/7/7/2500980319559680/2501550599749632/STEM/4500e48a644c4309b9bbf53239d3360d.png?resizew=236)
(1)证明:平面
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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78691dacfa00dd2448b1ba94b264ec8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b42602dabcdc7bdaba0ee0af37d71f0.png)
![](https://img.xkw.com/dksih/QBM/2020/7/7/2500980319559680/2501550599749632/STEM/4500e48a644c4309b9bbf53239d3360d.png?resizew=236)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2020-07-08更新
|
614次组卷
|
8卷引用:江西省贵溪市实验中学2020-2021学年高二上学期第一次月考数学(文)试题
江西省贵溪市实验中学2020-2021学年高二上学期第一次月考数学(文)试题2020届山西省运城市高中联合体高三模拟(二)数学(文)试题贵州省思南中学2019-2020学年高一下学期期末考试数学试题安徽省名校学术联盟2020届高三下学期押题卷文科数学试题(已下线)专题8.5 直线、平面垂直的判定及性质(精讲)-2021年新高考数学一轮复习学与练(已下线)专题8.5 直线、平面垂直的判定及性质(讲)-2021年新高考数学一轮复习讲练测(已下线)专题8.5 直线、平面垂直的判定及性质(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)押全国卷(文科)第19题 立体几何-备战2022年高考数学(文)临考题号押题(全国卷)
名校
2 . 如图,等腰梯形MNCD中,MD∥NC,MN=
MD=2,∠CDM=60°,E为线段MD上一点,且ME=3,以EC为折痕将四边形MNCE折起,使MN到达AB的位置,且AE⊥DC
(2)求点A到平面DBE的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(2)求点A到平面DBE的距离
您最近一年使用:0次
2019-09-13更新
|
461次组卷
|
4卷引用:江西省南昌市进贤一中2019-2020学年高二下学期线上测试数学(理)试题
江西省南昌市进贤一中2019-2020学年高二下学期线上测试数学(理)试题湖南省长沙市开福区长沙市第一中学2019年高三9月月考数学试题(已下线)13高考大题综合训练[理]-《备战2020年高考精选考点专项突破题集》(已下线)13.高考大题综合训练[文] -《备战2020年高考精选考点专项突破题集》
名校
解题方法
3 . 如图,已知PA⊥矩形ABCD所在的平面,M、N分别为AB、PC的中点,∠PDA=45°,AB=2,AD=1.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/a51752ea-91b3-4192-bb85-c9dfe1e257e5.png?resizew=181)
(1)求证:MN⊥CD;
(2)求点C点到平面PDM的距离.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/a51752ea-91b3-4192-bb85-c9dfe1e257e5.png?resizew=181)
(1)求证:MN⊥CD;
(2)求点C点到平面PDM的距离.
您最近一年使用:0次
4 . 在如图所示的四棱锥
中,四边形
为菱形,且
,
,M为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/1d1ffd18-5ac5-4edc-8c15-eb593cfc5cdd.png?resizew=183)
(1)求证:平面
平面
;
(2)求点M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/d95ff21f23e9d99539ed8447a7534865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eccbd2164cbc9c5eb449a419f742969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/1d1ffd18-5ac5-4edc-8c15-eb593cfc5cdd.png?resizew=183)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求点M到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
您最近一年使用:0次
5 . 如图,在三棱柱
中,侧面
是菱形,
,
是棱
的中点,
,
在线段
上,且
.
![](https://img.xkw.com/dksih/QBM/2020/3/27/2428136999288832/2428831724412928/STEM/7648d1bf-2ce4-4a60-9b56-6fee5f797583.png)
证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8035fc825a001d7d9a3dacd8271662.png)
若
,面
面
,求
到面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac4fb99967c46a3855bcf2885b448c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fc4fbd9390e2a5200920910abc63b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59da0269add3993c134f46169f213907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86814dbae9a5343d69bb4647900b3bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2221fe3118d6d55a78201f1c5296777c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d3bd9abb95b0e96333873fc454e03a7.png)
![](https://img.xkw.com/dksih/QBM/2020/3/27/2428136999288832/2428831724412928/STEM/7648d1bf-2ce4-4a60-9b56-6fee5f797583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8035fc825a001d7d9a3dacd8271662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45224f7eac9d0cef64bf28d93e7721a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2013579652aa5f53d43080856f01c374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fc4fbd9390e2a5200920910abc63b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445cfd832967db6bbaa0a2ea311b4f0d.png)
您最近一年使用:0次
2020-03-27更新
|
993次组卷
|
2卷引用:江西省吉安市第一中学2021-2022学年高二10月第一次段考数学(理)试题
6 . 如图,四面体
中,
是边长为1的正三角形,
是直角三角形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/6af63c35-6ce4-4496-a163-0a90be8b6b13.png?resizew=184)
(1)证明:平面
平面
;
(2)若点
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/0faed94a64b2dcfc6801b4fca0f16675.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/editorImg/2022/12/5/6af63c35-6ce4-4496-a163-0a90be8b6b13.png?resizew=184)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若点
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
2019-10-03更新
|
637次组卷
|
5卷引用:江西省抚州市临川一中2019-2020届高三上学期第一次联合考试 数学(文科)试题
江西省抚州市临川一中2019-2020届高三上学期第一次联合考试 数学(文科)试题2019年10月江西省临川第一中学高三上学期第一次联考数学(文)试题(已下线)专题8.5 直线、平面垂直的判定及其性质(讲)-浙江版《2020年高考一轮复习讲练测》福建省莆田第一中学2019-2020学年高三上学期期中考试数学(文)试题(已下线)专题8.5 直线、平面垂直的判定及性质(讲)-2021年新高考数学一轮复习讲练测
7 . 如图所示,在四棱锥
中,
是正三角形,四边形
为直角梯形,点
为
中点,且
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/16d0e614-4f1d-44de-a6ce-28e68bbfda27.png?resizew=106)
(1)求证:平面
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f90126f831d6600522ecaa66c2a8b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b3539fcb35e07fcf3339eb04e7748d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a19338598965bb3856cdd0236bbf694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251a0e63b401d131f69677ccf5fabacf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/16d0e614-4f1d-44de-a6ce-28e68bbfda27.png?resizew=106)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5f0cfc1049f84a04c81bd213afb8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
名校
8 . 如图
,四边形
中,
是
的中点,
,
,
,
,将(图
)沿直线
折起,使
(如图
).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/6ae528a3-ec8a-47ae-9fa1-a0dcc577d6c8.png?resizew=231)
(1)求证:
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3bd7fcc7124307e9c33f98c53f2edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e2a44d05b1d387150c4b359e021ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19fc9f894312e55c87a0d6737080e233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65d5853c26657db448af610ac72cca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73d73869615fbaef5bf4fed0b2209c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/6ae528a3-ec8a-47ae-9fa1-a0dcc577d6c8.png?resizew=231)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
您最近一年使用:0次
9 . 如图1,在△ABC中,D,E分别为AB,AC的中点,O为DE的中点,
,BC=4.将△ADE沿DE折起到△
的位置,使得平面
平面BCED, F为A1C的中点,如图2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/2903039b-bb8a-40e6-b78c-b99092b480f8.png?resizew=313)
(1)求证EF∥平面
;
(2)求点C到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0117046e7a37bebe0c7b987a00d2bcb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b3e7c7845a0ec3cbac709fda131764.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/2903039b-bb8a-40e6-b78c-b99092b480f8.png?resizew=313)
(1)求证EF∥平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
(2)求点C到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb88c278e18d776f165bc571031071d8.png)
您最近一年使用:0次
名校
10 . 如图
,在梯形
中,
,
,
为
的中点,
是
与
的交点,将
沿
翻折到图
中
的位置,得到四棱锥
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/1479b53f-bec0-4f63-b572-9e04d3b5b352.png?resizew=420)
(1)求证:
;
(2)当
,
时,求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4299cca48ff6abfb252ef73b5e62317d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
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4卷引用:江西省临川第一中学2019-2020学年高三上学期10月月考数学(文)试题
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