如图,将边长为2的正方形ABCD沿对角线BD折叠,使得平面ABD⊥平面CBD,AE⊥平面ABD,且
.
(2)求点C到平面BED的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338c6c83ab4abc895ac36ab888a55be6.png)
(2)求点C到平面BED的距离.
22-23高二上·上海浦东新·期中 查看更多[7]
上海市进才中学2022-2023学年高二上学期期中数学试题(已下线)数学(上海B卷)上海奉贤区致远高级中学2023届高三5月模拟数学试题(已下线)第06讲 立体几何位置关系及距离专题期末高频考点题型秒杀上海市黄浦区向明中学2023-2024学年高二上学期期中数学试题(已下线)考点15 立体几何中的折叠问题 2024届高考数学考点总动员【练】(已下线)第10章 空间直线与平面(单元提升卷)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)
更新时间:2023-05-25 09:06:50
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相似题推荐
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】如图,在直四棱柱
中,
平面
,四边形
为菱形,
,
,
,
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/90da6235-cf00-4af8-b1b7-ddf8ede562d0.png?resizew=220)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/90da6235-cf00-4af8-b1b7-ddf8ede562d0.png?resizew=220)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923d409630f5331cf8e85fb6c584e31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】如图,在四棱锥P-ABCD中,
,
,
,
, PA=AB=BC=2. E是PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/4a437dc6-bc09-4e3f-8941-89fcbe63e6dd.png?resizew=139)
(1)证明:
;
(2)求三棱锥P-ABC的体积;
(3) 证明:
平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbb05b8b630052ff544249ebd72d95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db27b7f29d7d01b2692f217bc3079fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf10d92f20501e19d25f6f4159aab89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38cffa0b9b2cf2e5a0f4e2832046815.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/4a437dc6-bc09-4e3f-8941-89fcbe63e6dd.png?resizew=139)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44f4120c94cb7176dc31fcac387b32e.png)
(2)求三棱锥P-ABC的体积;
(3) 证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
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名校
【推荐1】如图,四棱锥
中,
,平面
平面
,
,
为
的中点.
//平面
;
(2)求点
到面
的距离
(3)求二面角
平面角的正弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf3295f3256e8b57fe0027be6831521.png)
![](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/a1146308d3df7837d7c1466f9df94083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a7ba7cd0c654714c967a900513ba16.png)
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【推荐2】如图,在平行四边形
中,
,平面
平面
,且
.
![](https://img.xkw.com/dksih/QBM/2020/2/26/2407361635631104/2408246925508608/STEM/a3adfa1f01dc47b7bd641a81ba05addc.png?resizew=172)
(1)在线段
上是否存在一点
,使
平面
,证明你的结论;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5acd37c075b9305086bb4e1bb66506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54cf75bbfc9db93d27937c8b8e977b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512bcdd5e3a0e23496f9c4904edd6058.png)
![](https://img.xkw.com/dksih/QBM/2020/2/26/2407361635631104/2408246925508608/STEM/a3adfa1f01dc47b7bd641a81ba05addc.png?resizew=172)
(1)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871221c3eaabb6d9b030ce91c7139709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128c69eb81dae89c6989d06d20925ad2.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f323421adf8083d252f0070f54f3a80.png)
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解答题-证明题
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适中
(0.65)
解题方法
【推荐1】如图,在四棱锥
中,底面四边形ABCD是菱形,
,
平面
,
,E,F分别为AB,PD的中点.
![](https://img.xkw.com/dksih/QBM/2020/4/8/2437153808973824/2437562633338880/STEM/6510f6908586492ab1049cc0a98e0c89.png?resizew=176)
(1)求证:
平面PEC;
(2)求点D到平面PEC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c762086e5ba072fc253a26a7ad8b9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.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/3b610c9b9948d88eda8de0fb8d1cf972.png)
![](https://img.xkw.com/dksih/QBM/2020/4/8/2437153808973824/2437562633338880/STEM/6510f6908586492ab1049cc0a98e0c89.png?resizew=176)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d46554105150391e671609fc6348a18.png)
(2)求点D到平面PEC的距离.
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【推荐2】如图,四边形ABCD为平行四边形,点E在CD上,CE=2ED=2,且BE⊥CD.以BE为折痕把△CBE折起,使点C到达点F的位置,且∠FED=60°.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/7cc25ecf-42ea-434e-a2ef-c856ce8ee4ba.png?resizew=240)
(1)求证:平面FAD⊥平面ABED;
(2)若直线BF与平面ABED所成角的正切值为
,求点A到平面BEF的距离.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/7cc25ecf-42ea-434e-a2ef-c856ce8ee4ba.png?resizew=240)
(1)求证:平面FAD⊥平面ABED;
(2)若直线BF与平面ABED所成角的正切值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83303d3784492506fc44f2b4d6b07bc1.png)
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解答题-证明题
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适中
(0.65)
【推荐1】如图1,在平面四边形ABCD中,BC⊥AC,CD⊥AD,∠DAC=∠CAB=
,AB=4,点E为AB的中点,M为线段AC上的一点,且ME⊥AB.沿着AC将△ACD折起来,使得平面ACD⊥平面ABC,如图2.
![](https://img.xkw.com/dksih/QBM/2021/9/4/2800817550245888/2802880876658688/STEM/bc212668eb0d4f8288e4f571a407a233.png?resizew=432)
(1)求证∶BC⊥AD;
(2)求二面角A-DM-E的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://img.xkw.com/dksih/QBM/2021/9/4/2800817550245888/2802880876658688/STEM/bc212668eb0d4f8288e4f571a407a233.png?resizew=432)
(1)求证∶BC⊥AD;
(2)求二面角A-DM-E的余弦值.
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解答题-证明题
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适中
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解题方法
【推荐2】如图,已知AB⊥平面ACD,DE⊥平面ACD,三角形ACD是正三角形,且AD=DE=2AB,F是CD的中点.
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572335102083072/1572335108096000/STEM/db95c6732ecf430a86cbbf20ef630b66.png?resizew=178)
(Ⅰ)求证:平面CBE⊥平面CDE;
(Ⅱ)求二面角C—BE—F的余弦值.
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572335102083072/1572335108096000/STEM/db95c6732ecf430a86cbbf20ef630b66.png?resizew=178)
(Ⅰ)求证:平面CBE⊥平面CDE;
(Ⅱ)求二面角C—BE—F的余弦值.
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