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
解题方法
2 . 如图,三棱锥
中,底面△
是边长为2的正三角形,
,
底面
,点
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/d0b693e2-05dd-463f-aee6-1536b6a2408d.png?resizew=150)
(1)求证:平面
平面
;
(2)在线段
上是否存在点
,使得三棱锥
体积为
?若存在,确定点
的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/d0b693e2-05dd-463f-aee6-1536b6a2408d.png?resizew=150)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51838e395dfc9d9ef597d9e01f46272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7677eda0e5caba5c99ca1d59c7c0c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a8b76e36783a69d14ec54af82c7df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
您最近一年使用:0次
2020-06-30更新
|
1097次组卷
|
6卷引用:江西省宜春市奉新县第一中学2021-2022学年高二上学期第三次月考数学(文)试题
名校
解题方法
3 . 如图,四棱锥P-ABCD中,PD⊥底面ABCD,AB∥CD,∠BAD=
,AB=1,CD=3,M为PC上一点,且MC=2PM.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/13/36ee2d72-e476-4b35-b07b-7cd2ba20e04d.png?resizew=166)
(1)证明:BM
平面PAD;
(2)若AD=2,PD=3,求点D到平面PBC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/13/36ee2d72-e476-4b35-b07b-7cd2ba20e04d.png?resizew=166)
(1)证明:BM
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
(2)若AD=2,PD=3,求点D到平面PBC的距离.
您最近一年使用:0次
2020-10-23更新
|
295次组卷
|
5卷引用:四川省眉山市彭山区第一中学2020-2021学年高二10月月考数学(文)试题
4 . 如图所示,梯形
中,
,平面
平面
,且四边形
为矩形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/6/18/2487460573790208/2488060332752896/STEM/e08a17b2-4f6e-4c33-973f-d1a15440c23e.png)
(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/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a68a008a22d5a8cea5fe8dcf31e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ea9d92e5c258a50af1e461c7388894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0524c3287106a4460858ed3926989a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af32ecdc0dc2f1a60b47f3311a0587d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71aa812f83d86aaf308244a9afc09322.png)
![](https://img.xkw.com/dksih/QBM/2020/6/18/2487460573790208/2488060332752896/STEM/e08a17b2-4f6e-4c33-973f-d1a15440c23e.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.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
2020-06-19更新
|
995次组卷
|
5卷引用:广东省湛江市第二十一中学2020届高三下学期6月热身数学(文)试题
名校
解题方法
5 . 如图,正方体
,点
为对角线
上的点,当点
由点
向点
运动过程中,下列说法正确的是
![](https://img.xkw.com/dksih/QBM/2020/6/18/2487460573790208/2488060332654592/STEM/d0202c5d059a45f3b2b4402506d670b7.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://img.xkw.com/dksih/QBM/2020/6/18/2487460573790208/2488060332654592/STEM/d0202c5d059a45f3b2b4402506d670b7.png?resizew=144)
A.![]() |
B.![]() |
C.![]() ![]() |
D.点![]() ![]() |
您最近一年使用:0次
2020-06-19更新
|
671次组卷
|
3卷引用:江西省南昌市进贤县第一中学2021届高三上学期第二次月考数学(文)试题
名校
解题方法
6 . 如图,长方体
的侧面
是正方形.
![](https://img.xkw.com/dksih/QBM/2020/5/21/2467722576846848/2468122565967872/STEM/bf09f9c7-b479-4f30-b509-49d88e84968c.png?resizew=230)
(1)证明:
平面
;
(2)若
,
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22ebcc4aa98d46366df48f751a5f368.png)
![](https://img.xkw.com/dksih/QBM/2020/5/21/2467722576846848/2468122565967872/STEM/bf09f9c7-b479-4f30-b509-49d88e84968c.png?resizew=230)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4890e58791814622b87c4d60ea971f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028856d5101687dd8eaf130846489cfd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
您最近一年使用:0次
2020-05-22更新
|
284次组卷
|
2卷引用:江西省南昌市进贤县第一中学2019-2020学年高二下学期第一次月考数学(文科)试题
解题方法
7 . 在如图所示的多面体中,平面
垂直于以
为直径的半圆面,
为
上一点,
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/5/4/2455712498843648/2457599813337088/STEM/472d7ef98b114dcf9a1b6eea62933c54.png?resizew=197)
(1)若点
是线段
的中点,求证:
平面
;
(2)若点
为
的中点,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e20b970f3b0dc1c9a3de6eb09beead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1822a1725b8797343a6615378356d91c.png)
![](https://img.xkw.com/dksih/QBM/2020/5/4/2455712498843648/2457599813337088/STEM/472d7ef98b114dcf9a1b6eea62933c54.png?resizew=197)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
您最近一年使用:0次
2020-05-07更新
|
167次组卷
|
3卷引用:江西省赣州市2019-2020学年高三年级摸底考试数学(文)试题
江西省赣州市2019-2020学年高三年级摸底考试数学(文)试题(已下线)【南昌新东方】 江西省南昌市新建一中2020-2021学年高三上学期10月第一次月考数学(文)试题江西省南昌市新建县第一中学2021届高三第一次月考数学文科试题
解题方法
8 . 如图,正方体
的棱长为
,点
、
为棱
、
的中点.
![](https://img.xkw.com/dksih/QBM/2020/4/26/2449798289408000/2450436423729152/STEM/69b52571e55c412dad4f29de4666e242.png?resizew=220)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e19d1a7e89beddaf468bdce5e31550e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e737bc35da650eda3825d29799b5f86f.png)
![](https://img.xkw.com/dksih/QBM/2020/4/26/2449798289408000/2450436423729152/STEM/69b52571e55c412dad4f29de4666e242.png?resizew=220)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f70cf3f6c7acbf60d4a4ca0ce89619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe02a25afc35da213ba4aee378a308b.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4171e7f713d6b265d56b2662b7af57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
您最近一年使用:0次
9 . 如图所示,在直三棱柱
中,
设
为
的中点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/b255a25a-8f05-4e33-8336-10925d708b5f.png?resizew=170)
(1)求证:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dae352c45f6d55b65e61e5e264d016.png)
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ed39da4698ec7a0aa2e967501d3eac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cdf47b9d0e440f43d3fa6ba4343be4c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/b255a25a-8f05-4e33-8336-10925d708b5f.png?resizew=170)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c920d02068d0e63ffdab70786c526d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dae352c45f6d55b65e61e5e264d016.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a935b7d21a103a264b6e96ecf82dbe4a.png)
您最近一年使用:0次
10 . 在我国古代数学名著《九章算术》中将底面为直角三角形,且侧棱垂直于底面的三棱柱称之为堑堵,如图,在堑堵ABC﹣A1B1C1中,AB=BC,AA1>AB,堑堵的顶点C1到直线A1C的距离为m,C1到平面A1BC的距离为n,则
的取值范围是( )
![](https://img.xkw.com/dksih/QBM/2020/3/18/2422298677780480/2423164892299264/STEM/c7ab6adeccc94337a6fe7de23279485c.png?resizew=141)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e61154455cdd8f03a63be98faebe6da.png)
![](https://img.xkw.com/dksih/QBM/2020/3/18/2422298677780480/2423164892299264/STEM/c7ab6adeccc94337a6fe7de23279485c.png?resizew=141)
A.(1,![]() | B.(![]() ![]() | C.(![]() ![]() | D.(![]() ![]() |
您最近一年使用:0次
2020-03-19更新
|
409次组卷
|
6卷引用:【南昌新东方】 江西省南昌三中2020-2021学年高二上学期10月第一次月考数学(理)试题
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