名校
1 . 如图,已知三棱柱
中,侧棱与底面垂直,且
,
,
、
、
、
分别是
、
、
、
的中点.
![](https://img.xkw.com/dksih/QBM/2022/3/7/2930976611385344/2936824562573312/STEM/3bd22424-7178-4f39-95dc-3a55a119a1c4.png?resizew=237)
(1)求证:
平面
;
(2)求平面
与平面
夹角的余弦值;
(3)点
在线段
上,若直线
与平面
所成角的正弦值为
时,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002c709e9fee8d477bddfe595cc760f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/2022/3/7/2930976611385344/2936824562573312/STEM/3bd22424-7178-4f39-95dc-3a55a119a1c4.png?resizew=237)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81fa367ec317fe2a30142e1c30cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2af0a097c6c0870b0db6a9bec14e4f.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22064b7c5fdc0cd58905f49cc480b4e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cb57b942813635ef4e4c3bea67928f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e935bb9d7b7115429edbd1e7469af65.png)
您最近一年使用:0次
2022-03-15更新
|
780次组卷
|
2卷引用:安徽省合肥市第五中学2022届高三一模理科数学试题
名校
2 . 如图所示,已知矩形
和矩形
所在的平面互相垂直,
,M,N分别是对角线
,
上异于端点的动点,且
.
![](https://img.xkw.com/dksih/QBM/2022/3/7/2931242479820800/2932801980981248/STEM/e368af2a-f34d-4f00-9488-1bd20f9d8973.png?resizew=174)
(1)求证:直线
平面
;
(2)当
的长最小时,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e92ffeacd9cc1f339fcf263468fd2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c30fad9d4f86033bcd8375ddd6d3874.png)
![](https://img.xkw.com/dksih/QBM/2022/3/7/2931242479820800/2932801980981248/STEM/e368af2a-f34d-4f00-9488-1bd20f9d8973.png?resizew=174)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c208b836ff6c9ce497423aea839b63a.png)
您最近一年使用:0次
2022-03-10更新
|
1725次组卷
|
4卷引用:安徽省江南十校2022届高三下学期3月一模理科数学试题
安徽省江南十校2022届高三下学期3月一模理科数学试题(已下线)专题20 平行垂直与空间向量在立体几何中的应用-2022届高考数学一模试题分类汇编(新高考卷)广东省广州市铁一,广附,广外2023届高三上学期三校联考数学试题(已下线)安徽省江南十校2022届高三下学期3月一模理科数学试题变式题16-20
名校
3 . 如图,在三棱柱
中,
平面
,
,
,
,点
分别在棱
和棱
上,且
,
,
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/2022/2/22/2921941148581888/2928115499188224/STEM/bc05a00c-970a-48d3-9d0b-1d74aafdc0a6.png?resizew=163)
(1)求证:
平面
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8bfe2553e852df73185d017c0a62fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209acf15985d1ea1ad86fc4a37e38c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.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/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/2022/2/22/2921941148581888/2928115499188224/STEM/bc05a00c-970a-48d3-9d0b-1d74aafdc0a6.png?resizew=163)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/903dc68a0352d0201f2ed22267a12b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0278f9809e118b80c9946d9b9ae40c83.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4feab537a7aaa3ea5a47bbed9e9421c4.png)
您最近一年使用:0次
2022-03-03更新
|
570次组卷
|
3卷引用:安徽省滁州市定远县育才学校2021-2022学年高三下学期第一次月考数学(理)试题
名校
4 . 如图,在四棱锥
中,底面ABCD是正方形,AC、BD相交于点O,侧棱
底面ABCD,
,E是PC的中点,过E作
交PB于点F,连接DF,BE.
![](https://img.xkw.com/dksih/QBM/2022/2/12/2915036572844032/2927533208895488/STEM/c8729cae54d84c78b126cae421094989.png?resizew=220)
(1)求证:
平面BDE;
(2)求二面角
的余弦值;
(3)取PA中点G,判断直线DG与平面DEF的位置关系.
![](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/43d4c42112e0a22f240ce2ae432e5b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4a6a1e70241d600bc6c104313eac61.png)
![](https://img.xkw.com/dksih/QBM/2022/2/12/2915036572844032/2927533208895488/STEM/c8729cae54d84c78b126cae421094989.png?resizew=220)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1666b45ed176d648dd1764f4a2dbd73.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd02f171d6ae36135cd30987376e3b7.png)
(3)取PA中点G,判断直线DG与平面DEF的位置关系.
您最近一年使用:0次
名校
5 . 如图,四棱柱
中,四边形
为矩形,且平面
平面
,
,
,
,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734306738176/2927423329067008/STEM/74b21ec5-9053-4db3-8ad8-5fe272f5f12d.png?resizew=203)
(1)证明:
平面
;
(2)求
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22ebcc4aa98d46366df48f751a5f368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f67c2d29909f744a60448e409f0fbab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04415900de76e34c2d45431f4569382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2324805c5dfe2a35787bc3af840586ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734306738176/2927423329067008/STEM/74b21ec5-9053-4db3-8ad8-5fe272f5f12d.png?resizew=203)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9881fa5ebb7a73ee0f744df6baceb5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
您最近一年使用:0次
2022-03-02更新
|
669次组卷
|
4卷引用:百师联盟2022届高三下学期2月开年摸底联考全国卷1理科数学试题
名校
解题方法
6 . 如图,四棱柱
中,四边形
为矩形,且平面
平面ABCD,
,
,
,M,E分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734397734912/2926951012671488/STEM/6a01b887-4ce2-4e68-94cf-2dcfe2ce26ae.png?resizew=194)
(1)证明:
平面
;
(2)若
,求点M到平面ADE的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22ebcc4aa98d46366df48f751a5f368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f67c2d29909f744a60448e409f0fbab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04415900de76e34c2d45431f4569382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2324805c5dfe2a35787bc3af840586ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734397734912/2926951012671488/STEM/6a01b887-4ce2-4e68-94cf-2dcfe2ce26ae.png?resizew=194)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6dfed58659a9cab4d1836c3d2effdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
您最近一年使用:0次
2022-03-01更新
|
444次组卷
|
2卷引用:百师联盟2022届高三下学期2月开年摸底联考全国卷1文科数学试题
7 . 如图甲,在
中,∠B=90°,BC=1,AB=2,D、E分别是AB、AC边上的动点(除去端点),满足
,
.现将△
沿DE折起,使点A到达点A'的位置,连接A'B,A'C得到如图乙所示的四棱锥A'-DBCE.
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913562102841344/2926158898552832/STEM/99c0eb7928f64e4bb7b0e123d5b013b2.png?resizew=140)
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913562102841344/2926158898552832/STEM/b7795cca6bc2497c8cb5484af0117652.png?resizew=175)
(1)设l为平面A'DE与平面
的交线,求证:l//平面DBCE;
(2)若A'D⊥BD,则当
为何值时,四棱锥A'-DBCE的体积最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f8b2287194cbc11b6f2ca16e57c990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9803747992ce4d717160187a4388a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913562102841344/2926158898552832/STEM/99c0eb7928f64e4bb7b0e123d5b013b2.png?resizew=140)
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913562102841344/2926158898552832/STEM/b7795cca6bc2497c8cb5484af0117652.png?resizew=175)
(1)设l为平面A'DE与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9834675e3f6975696f2dc7edf5fe1f7.png)
(2)若A'D⊥BD,则当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
8 . 如图,在多面体
中,平面
平面
,其中
与
都是面积为
的等边三角形,
,点
在平面
上的射影落在
中
边的中线上,且直线
与平面
所成角的大小为30°.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/7472cf94-7192-4e38-8fc6-023365de7cfa.png?resizew=148)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a26c2c53046cbfe83f84f5393373589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/7472cf94-7192-4e38-8fc6-023365de7cfa.png?resizew=148)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75aea24647cd4d0b4b9aa513bf5457b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在三棱柱
中,
为棱
的中点,
平面
.
![](https://img.xkw.com/dksih/QBM/2022/1/23/2901175715094528/2910561972363264/STEM/3b35aae8-6bce-4451-93d2-7f16d287d98e.png?resizew=206)
(1)试确定点
的位置,并证明
平面
;
(2)若
是等边三角形,
,
,且平面
平面
,求四面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a38e90ebca7e3403a70bd3c3eb1cc6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33346a15ff78b784a1f7c1f29ebdc85a.png)
![](https://img.xkw.com/dksih/QBM/2022/1/23/2901175715094528/2910561972363264/STEM/3b35aae8-6bce-4451-93d2-7f16d287d98e.png?resizew=206)
(1)试确定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b625cf58375c5c5076f43f6b444db3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4a1f5a0cdcabfcb417d26f69b337de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131c735c1736250c608af9f0d2d185fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ebaa9d4b7d116de59ad789386b09d61.png)
您最近一年使用:0次
2022-02-06更新
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708次组卷
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3卷引用:安徽省合肥市2021-2022学年高三上学期第一次教学质量检测文科数学试题
安徽省合肥市2021-2022学年高三上学期第一次教学质量检测文科数学试题(已下线)解密14 空间中的平行与垂直 (讲义)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)四川省成都市石室中学2021-2022学年高三下学期“三诊模拟”文科数学试题
名校
解题方法
10 . 如图,已知圆
的直径
长为4,点
是圆弧上一点,
,点
是劣弧
上的动点,
点是另一半圆弧的中点,沿直径
,将圆面折成直二面角,连接
.
![](https://img.xkw.com/dksih/QBM/2022/1/11/2892240271745024/2910421359943680/STEM/ee046130-97aa-499e-935e-3142c07746e4.png?resizew=349)
(1)若
面
时,求
的长;
(2)当三棱锥
体积最大时,求二面角
正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/2bfb836792b1eebfbd08a6f46fae580e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16f6efa10501511dd7c63c5051376c7.png)
![](https://img.xkw.com/dksih/QBM/2022/1/11/2892240271745024/2910421359943680/STEM/ee046130-97aa-499e-935e-3142c07746e4.png?resizew=349)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab8099c774a6ae6dd98712b0b90b60cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)当三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b2a4541d85e8710408c45c99950b6af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0297943fae12e34fab38c541002b15.png)
您最近一年使用:0次
2022-02-06更新
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6卷引用:安徽省淮北市2022届高三上学期一模理科数学试题
安徽省淮北市2022届高三上学期一模理科数学试题安徽省亳州市第一中学2021-2022学年高二上学期元月月考数学试题安徽省合肥市第一中学2021-2022学年高二下学期3月测试数学试题(已下线)山东省日照市2023届高三一模考试数学试题变式题17-22河北省唐山市开滦第二中学2023届高三考前保温数学试题(已下线)第三章 折叠、旋转与展开 专题一 平面图形的翻折、旋转 微点8 平面图形的翻折、旋转综合训练