1 . 如图,正三棱柱
中,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/f613ec62-56d1-45df-9038-d9c374ed0b08.png?resizew=160)
(1)求证:
平面
;
(2)若
,求直线
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/f613ec62-56d1-45df-9038-d9c374ed0b08.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c920d02068d0e63ffdab70786c526d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba99277e38f8d9f817a9d7db8198219.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e44cb429eea46e7ee4320147192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9961e091f180e964a962adf6916f33c8.png)
您最近一年使用:0次
解题方法
2 . 如图,四边形ABCD是边长为2的菱形,∠ABC=60°,将
沿直线AC折起到
的位置,使PD=3.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/acb77688-ddb0-45f4-89c3-e036b9e60f21.png?resizew=170)
(1)证明:
;
(2)求点C到平面APD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d20dded1ebe7a10b9cc48c4b655978b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/acb77688-ddb0-45f4-89c3-e036b9e60f21.png?resizew=170)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5f516a380f5d9eacf4a9223af6db97.png)
(2)求点C到平面APD的距离.
您最近一年使用:0次
2022-10-20更新
|
153次组卷
|
2卷引用:江西省赣州市七校2023届高三上学期期中联考数学(文)试题
名校
3 . 如图,四棱柱
的底面ABCD为正方形,O为BD的中点,
⊥底ABCD,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/aa6f2f5b-4669-4fa5-9235-cdc11526326f.png?resizew=276)
(1)求证:平面
∥平面
.
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc526324e78e4d9226d1b537f27845a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95196d4658088f565e495c005cfed5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/aa6f2f5b-4669-4fa5-9235-cdc11526326f.png?resizew=276)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7989987e76fe40de8b7533a22912a2.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
您最近一年使用:0次
2022-07-03更新
|
441次组卷
|
3卷引用:江西省宜春市宜丰县宜丰中学2022-2023学年高一创新部上学期第三次月考(12月)数学试题
名校
解题方法
4 . 如图
,在边长为
的等边
中,
,
分别为边
,
的中点.将
沿
折起,使得
,得到如图
的四棱锥
,连接
,
,且
与
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/df6c4abf-3be1-4ea2-a342-afe65a2d1c3d.png?resizew=420)
(1)证明:
;
(2)设点
到平面
的距离为
,点
到平面
的距离为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/df6c4abf-3be1-4ea2-a342-afe65a2d1c3d.png?resizew=420)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc16a9467a6de4ff5cfccc4316ae871.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a9b32570d553161be04d13954e92a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b53eab97158937f92039c1e133b0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f285174fbf90a9742de57c1e53224cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bc9e7badfafa2bfd9ece72da1ac71a.png)
您最近一年使用:0次
2022-10-09更新
|
198次组卷
|
3卷引用:江西省临川第一中学2023届高三上学期期中数学(理)试题
5 . 如图所示,在四棱锥中
,
,
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/1f519bdc-3cb0-4389-b0ae-ba24023fe300.png?resizew=166)
(1)求证:
平面ADP;
(2)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ba2021caf4381dad4f73474912a8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e28b6a0398d826bfc7b45fc2b06d46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5ea309886e947ea7cb4b81716206fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72921fecf4ff29018f3bebaa01ff7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/1f519bdc-3cb0-4389-b0ae-ba24023fe300.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2022-06-13更新
|
372次组卷
|
2卷引用:江西省赣州市赣县第三中学2022-2023学年高二上学期10月月考数学试题
名校
解题方法
6 . 如图,在四棱锥
中,
,且
是棱
上一点,且满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/3c02264d-3b1e-4df5-9624-9a16f6342193.png?resizew=128)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
平面
;
(2)若三棱锥
的体积是
的面积是
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609653c2656cd993d77841b3922357ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71c67dae7c83183ffbf215c58ed1def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4448fd8a289320119b897a0deba4dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3ecf445ec08914acb644c94c4b0670.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/3c02264d-3b1e-4df5-9624-9a16f6342193.png?resizew=128)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d83c991c3d5cf60d11454f4ea5a129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce87b2ad30ede39a8d3e785beb4df64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
2022-09-28更新
|
337次组卷
|
2卷引用:江西省临川第一中学2023届高三上学期期中考试数学(文)试题
7 . 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
|
1863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
8 . 如图,在四棱锥
中,底面
为直角梯形,
,
平面
底面
,
分别为
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/f2c9d81b-3f09-497a-b9df-024068d8462e.png?resizew=172)
(1)求证:平面
平面
;
(2)求点A到平面MQB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/143b7d114a732d51fcb5e45d89590124.png)
平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b927242223336dee4ae69314709172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2682f3f3f0f72c893b99073bcac83ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3528422b3697cb8900ec82d61c75c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/f2c9d81b-3f09-497a-b9df-024068d8462e.png?resizew=172)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a3fd5284e160896f07ce367645fd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c51c4a1148587943fe9ba210f6141ee.png)
(2)求点A到平面MQB的距离.
您最近一年使用:0次
名校
解题方法
9 . 如图,已知AB⊥平面BCD,BC⊥CD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/88207df6-b354-4fff-8d86-a55180376f87.png?resizew=173)
(1)求证:平面ACD⊥平面ABC;
(2)若AB=1,CD=BC=
,求直线AD与平面ABC所成的角的余弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/88207df6-b354-4fff-8d86-a55180376f87.png?resizew=173)
(1)求证:平面ACD⊥平面ABC;
(2)若AB=1,CD=BC=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef812f839622326a7d7027cc806aaeb.png)
您最近一年使用:0次
2022-10-13更新
|
451次组卷
|
3卷引用:江西省赣州市赣县第三中学2022-2023学年高二上学期期中测试数学试题
名校
解题方法
10 . 如图,正方体
的棱长为
,点
、
为棱
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/f1b79e7e-0d6d-4d98-954e-71029feb25fe.png?resizew=175)
(1)求证:
∥平面
;
(2)求点D到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6e8da26cf6a4f1a0556619328c2d94.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/editorImg/2022/9/23/f1b79e7e-0d6d-4d98-954e-71029feb25fe.png?resizew=175)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f476ecdb36e7d45a4493b7f4e216854.png)
(2)求点D到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
您最近一年使用:0次