名校
解题方法
1 . 如图,在四棱锥
中,底面ABCD是平行四边形,E,F分别是CD,PB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/a7594f3f-1235-449f-abc9-c2ebee1a4fcc.png?resizew=140)
(1)证明:
平面PAD.
(2)若四棱锥
的体积为32,
的面积为4,求B到平面DEF的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/a7594f3f-1235-449f-abc9-c2ebee1a4fcc.png?resizew=140)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
(2)若四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
您最近一年使用:0次
2022-12-03更新
|
857次组卷
|
5卷引用:云南省开远市第一中学校2024届高三上学期开学考试数学试题
解题方法
2 . 如图,已知多面体
的底面
是边长为
的菱形,
底面
,
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/6/2f0b9f13-ae1e-4521-9ae5-cc2b5f34ac51.png?resizew=172)
(1)在线段
上是否存在点
,使得
平面
,若存在,说明理由;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f6a7b94cc4208c351f63f5f3521ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147e7c8ba0bbb540a712f6eb2ed6d22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc75bd0263fd719a9131d34a45ce542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1bde6ea07b53c6117aa88d748ecc530.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/6/2f0b9f13-ae1e-4521-9ae5-cc2b5f34ac51.png?resizew=172)
(1)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6dfed58659a9cab4d1836c3d2effdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09d9d486b7f91ba933210dd013a7f2c.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751b4e09cde1ff7fb3f0d309ebbf1506.png)
您最近一年使用:0次
名校
3 . 如图,在四棱锥
中,
平面
为矩形,
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/743255c0-9212-4e41-86ab-3908432a857e.png?resizew=136)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
平面
.
(2)若
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f1897a7e856b42f8cee0f286ad913d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654c6391665a5aee872901309abd4b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/044fc06badbda5c3f7882af087e8ce9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/743255c0-9212-4e41-86ab-3908432a857e.png?resizew=136)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585b9bbafa936929b1e77fe38b8ef4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
名校
解题方法
4 . 如图,在三棱柱
中,四边形
为菱形,
,平面
平面
﹐Q在线段AC上移动,P为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/c4b7a15c-4f94-4d35-a9ba-ea41b93ccf29.png?resizew=207)
(1)若H为BQ中点,延长AH交BC于D,求证:
平面
﹔
(2)若二面角
的平面角的余弦值为
,求点P到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f0d0e78101fef36a75b70ac7e7cf5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e20ab4f192002c79ccb7ff7f9d63ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e2385ec6765cff01b2d00664d4aad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/c4b7a15c-4f94-4d35-a9ba-ea41b93ccf29.png?resizew=207)
(1)若H为BQ中点,延长AH交BC于D,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5edfe97aeab0cf16b40fa9d2e15f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ffba8658b0023316117e1536cbf806.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39eefa58485e43a86a1931a2aa7222a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ec70bc9d4f8f5df312e2f09ee3bcb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fed1f54c1b008a633326db4f20288c5.png)
您最近一年使用:0次
2022-05-27更新
|
790次组卷
|
12卷引用:湖南省邵阳市第二中学2021-2022学年高二下学期入学考试数学试题
湖南省邵阳市第二中学2021-2022学年高二下学期入学考试数学试题河北省衡水中学2018届高三考前适应性训练6月1日第3天数学(理)试题人教A版(2019) 选择性必修第一册 必杀技 第一章 空间向量与立体几何 素养检测人教B版(2019) 选择性必修第一册 必杀技 第一章 空间向量与立体几何 素养检测北师大版(2019) 选修第一册 必杀技 第三章 素养检测辽宁省沈阳市2022届高三三模考试数学试题章节综合测试-空间向量与立体几何辽宁省大连市大连育明高级中学2022-2023学年高二上学期期中数学试题山东省东营市广饶县第一中学2022-2023学年高三上学期12月月考数学试题北师大版(2019) 选修第一册 章末检测卷(三) 空间向量与立体几何(已下线)第一章 空间向量与立体几何(单元提升卷)-2022-2023学年高二数学考试满分全攻略(人教A版2019选择性必修第一册)四川省宜宾市叙州区第二中学校2024届高三一模数学(理)试题
5 . 如图,在几何体
中,菱形
所在的平面与矩形
所在的平面互相垂直.
(1)若
为线段
上的一个动点,证明:
平面
;
(2)若
,
,直线
与平面
所成角的正弦值为
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/8/1b760c52-8b69-4472-8e7f-8fbcb42a1fb8.png?resizew=168)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5865d488a9cf1181016fd2e866177cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f75c42c77264076166fff76cfab4ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
您最近一年使用:0次
2023-07-07更新
|
357次组卷
|
3卷引用:江西省宜春市上高县2024届高三上学期开学数学试题
江西省宜春市上高县2024届高三上学期开学数学试题湖南省岳阳市2022-2023学年高二下学期期末数学试题(已下线)专题1.6 空间角的向量求法大题专项训练(30道)-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)
名校
解题方法
6 . 如图,正方形ABCD和菱形ACEF所在平面互相垂直,
.四棱锥
的体积是
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/c6705ee4-da66-4003-9fc9-4f14ad53ee46.png?resizew=157)
(1)求证:
平面ABF;
(2)求AB的长度及四面体ABEF的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1f4d1a70ef462f51f6d0c2db5fa6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e38f2b35473fa9afa57f66550e3f6d5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/c6705ee4-da66-4003-9fc9-4f14ad53ee46.png?resizew=157)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78172568aac9805d2ea2d5f742bf80c.png)
(2)求AB的长度及四面体ABEF的体积.
您最近一年使用:0次
名校
解题方法
7 . 如图甲,在平面五边形ABCDE中,
,
,
,
,
,
,
,
,垂足为H,将
沿AD折起(如图乙),使得平面
平面ABCD.
(1)求证:
平面ABCD;
(2)在线段BE上是否存在点M,使得
平面CDE?若存在,求
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8e727e4efc22b49649f71ae9c9d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3bbe4cdd2c154bd9a8073b0d4cecb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5740c2a631f14c695386ec8178bf853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86338536656046e93b53672ade9a78b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10b6175fb056760a9357936d14ffe82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ba3109534912d40dc277aa0c2a8fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/14/8fac5393-4033-4d85-afd1-451364fef3c0.png?resizew=143)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/14/bdbafdee-dd06-456b-ab18-2e4c86cea3f2.png?resizew=157)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e2dc4bf4fdbfebc9ef6822aa37790a6.png)
(2)在线段BE上是否存在点M,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3869b3d43cd1d050dac2baecc169f957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd8a98e03f6bb5601c91e72e9102e44.png)
您最近一年使用:0次
8 . 如图,在长方体
中,
,
分别是线段
,
的中点.
平面
;
(2)若
,直线
与
所成角的余弦值是
,求四面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a407b262c22419f73396170ecdc849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635a764c14e95e53a7a160d84706a449.png)
您最近一年使用:0次
2022-07-10更新
|
622次组卷
|
6卷引用:安徽省宣城市三校2022-2023学年高二上学期期初联考数学试题
安徽省宣城市三校2022-2023学年高二上学期期初联考数学试题福建省泉州第一中学2022-2023学年高二上学期暑假返校数学试题湖南省五市十校教研教改共同体2021-2022学年高一下学期期末数学试题湖北省黄冈市黄州中学(黄冈外校)2022-2023学年高一下学期第七次阶段性测试数学试题(已下线)8.5.3 平面与平面平行(第2课时) 平面与平面平行的性质(分层作业)-【上好课】北京市第八十中学2023-2024学年高一下学期期中考试数学试题
解题方法
9 . 如图为一个组合体,其底面
为正方形,
平面
,
,且
.
(1)证明:
平面
;
(2)证明:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/b73f874048f9e48ae35ee95bbf443bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3b89860bcc3e950f1b21575579d8bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/867f3236-6c45-487b-b155-061c431c48b7.png?resizew=170)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7175df06e33cad4e6bbc3f2f6b0a2986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
名校
10 . 如图,正四棱台
中,
,
,
.
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
平面
;
(2)若
,求异面直线
与
所成的角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55731dcaa0628ad98b3a6bd76e094da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adaf232f9825e5b1cb1ce6df59ed9053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad7cddb5318cd0016809eb6cf5b5422.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/c50e01a7-a4b3-4713-bc65-3b830d5f8fbe.png?resizew=161)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28d6477c85c5a4ac410a884e92fbe53.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae20f596174c7b5c8684ef09c5381bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
您最近一年使用:0次
2023-07-16更新
|
268次组卷
|
2卷引用:江西省都昌县第一中学2023-2024学年高二上学期入学考试数学试题