解题方法
1 . 如图,在四棱锥
中,侧面
底面ABCD,侧面PAB是边长为1的等边三角形,底面ABCD是正方形,
是侧棱PB上的点,
是底面对角线AC上的点,且
,
.
(1)求证:
;
(2)求证:
平面PAD;
(3)求点
到平面PAD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4eebde0291ae62d02a498b56358ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ac7b134d8d1136f90233addaa4723f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/28/4a9ebc2f-c120-4160-a426-37f01d69be62.png?resizew=193)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfa54114f04a75b8c96165b3718ed7f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,在三棱锥
中,
底面
,
.点
、
、
分别为棱
、
、
的中点,
是线段
的中点,
,
.
平面
;
(2)求点
到直线
的距离;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.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/6f8e9ec412ea0355e4e5cd06c60e5fee.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bae7599ad243c12d94325ad917f0a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
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名校
3 . 在如图所示的直三棱柱
中,D、E分别是
的中点.
平面
;
(2)若
为等边三角形,且
,M为
上的一点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b822c51345a72700a6562d04be6e750.png)
求直线
与直线
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ddef39ef9ed3da136c4ed8b5d28b73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063510e3c1fb6a7ccc3b8e3e3c7d660e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91ff123ed8471d1354dea825775e416.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1baa3d0db9ad31d33c2883a6efed1dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b822c51345a72700a6562d04be6e750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05250abe6da85eb0b555948d7dbaf317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
您最近一年使用:0次
2024-02-03更新
|
332次组卷
|
7卷引用:专题8.9 空间角与空间距离大题专项训练-举一反三系列
(已下线)专题8.9 空间角与空间距离大题专项训练-举一反三系列(已下线)第13章 立体几何初步 章末题型归纳总结 (1)-【帮课堂】(苏教版2019必修第二册)(已下线)重难点专题13 轻松搞定线面角问题-【帮课堂】(苏教版2019必修第二册)2017届河北武邑中学高三文上期中数学试卷2017届河南百校联盟高三文11月质监数学乙试试卷上海市金山中学2021-2022学年高二上学期期中数学试题宁夏回族自治区银川市银川一中2024届高三上学期第六次月考数学(文)试题
4 . 如图,
平面
,四边形
为矩形,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963a91995abd4927d75406d16e10a81f.png)
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/f347f03e-11c6-44ce-8eee-1420d7a0cab1.png?resizew=144)
(1)求证:
平面
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bedde879f99aed69d745d5ec8fe62084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963a91995abd4927d75406d16e10a81f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325cbcd4b35b95eac598a8403c200e1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/603d9d99e8cacfe71e0f83ce425cecc1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/f347f03e-11c6-44ce-8eee-1420d7a0cab1.png?resizew=144)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94270844f197d524bf1da4f1385befd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14eec658f69c267a70c1e8f9b744e282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
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5 . 在直三棱柱
中,
,M、N分别为棱BC和
的中点,点P是侧面
上的动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/15/e4da0903-86de-4cd9-a518-ffb913c98f5a.png?resizew=149)
(1)若
平面AMN,试求点P的轨迹,并证明;
(2)若P是线段
的中点,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b757458416612e358a4a5155eccabb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b7b7793d29d66dfdd89e7a6564a35c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/15/e4da0903-86de-4cd9-a518-ffb913c98f5a.png?resizew=149)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8759f11769105049212e1f52aedbb3d3.png)
(2)若P是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e62555c64bf39344c114f8e08bca6ae.png)
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2022高三·全国·专题练习
解题方法
6 . 在长方体
中,
,P为
的中点.已知过点
的平面
与平面
平行,平面
与直线
分别相交于点M,N,请确定点M,N的位置;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed557e33dca77e3a0257601967aae3a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fefcf84a963513b911531e84cb4ce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc9b42d16569ad69c38883534a0be16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecba79b0285803b1bc62d406d568b016.png)
![](https://img.xkw.com/dksih/QBM/2022/8/19/3047954347515904/3048534970114048/STEM/f072216f1ffc4d5abe3c4e8ad6b4cb1a.png?resizew=230)
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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
解题方法
8 . 如图,在正方体
中,
,
,
分别是棱
,
的中点,设
是线段
上一动点.
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.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/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bc5d8308a060d6068cfc9f69fe79e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05479ce59da01ea9c5bef3f20efadb41.png)
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9 . 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: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】
(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
23-24高二上·全国·期末
解题方法
10 . 如图,在三棱柱
中,四边形
为菱形,
,
,
,平面
平面
,Q在线段上移动,P为棱
的中点.
![](https://img.xkw.com/dksih/QBM/2023/12/25/3396729386549248/3396783588081664/STEM/0db9a04b71be464e9730451eabd0f7dc.png?resizew=216)
(1)若Q为线段AC的中点,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/f8fba6dc92460fa44832398fd2868940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cdaadeae37736a1e6dd93fa1fe712f.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/2023/12/25/3396729386549248/3396783588081664/STEM/0db9a04b71be464e9730451eabd0f7dc.png?resizew=216)
(1)若Q为线段AC的中点,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)
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