名校
解题方法
1 . 如图1所示,在边长为3的正方形ABCD中,将△ADC沿AC折到△APC的位置,使得平面
平面ABC,得到图2所示的三棱锥
.点E,F,G分别在PA,PB,PC上,且
,
,
.记平面EFG与平面ABC的交线为l.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/6c137775-a663-4601-94f9-c773c9f1b07a.png?resizew=408)
(1)在图2中画出交线l,保留作图痕迹,并写出画法.
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1095b030f441de5fb223781b00f3dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715ef932b72eb703f3e7a17ee2ce6a7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1828795d52174dd64fba1c9ebe61072b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cf0ee918f8c2f753302d3b5928d358.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/6c137775-a663-4601-94f9-c773c9f1b07a.png?resizew=408)
(1)在图2中画出交线l,保留作图痕迹,并写出画法.
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
您最近一年使用:0次
2 . 如图,平行四边形
中,
,将
沿
翻折,得到四面体
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/d37bafd2-e5f2-4a92-a890-c3b581222f59.png?resizew=179)
(1)若
,作出二面角
的平面角,说明作图理由并求其大小;
(2)若
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b58022e20e4bd2a6c25f3f3a2d14fb76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4864c21e9664fa9111ede6425b09563a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/d37bafd2-e5f2-4a92-a890-c3b581222f59.png?resizew=179)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26019bbb4d9dbe9052e6761f9cf2eee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715cc9ea5e7d80930284ffb117142770.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba267dd0d6ff54f29d9786271e24750a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2024-01-11更新
|
397次组卷
|
3卷引用:广东省广州市第六中学2024届高三上学期第一次调研数学试题
广东省广州市第六中学2024届高三上学期第一次调研数学试题上海市长宁区民办新虹桥高级中学2023-2024学年高二上学期期末考试数学试卷(已下线)第15讲 8.6.3平面与平面垂直(第2课时)-【帮课堂】(人教A版2019必修第二册)
3 . 如图,已知平行六面体
的底面
是菱形,
,
且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/0ae83c6c-1abc-4d73-a221-c4cce03141e4.png?resizew=168)
(1)试在平面
内过点
作直线
,使得直线
平面
,说明作图方法,并证明:直线
;
(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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7140fdf18ef6197cc694c6f5cea5e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c04a388de58d15d66696048927e9af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb1e5f3c45a5c53940c2fad4658cb69.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/0ae83c6c-1abc-4d73-a221-c4cce03141e4.png?resizew=168)
(1)试在平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23976db53f05b3d5d791c4d736a7184d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73845d4d663b3de0b281611fe2c762fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24540ddbb1a3f71004501da5122eb183.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
您最近一年使用:0次
名校
解题方法
4 . 如图为一块直四棱柱木料,其底面
满足:
,
.
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897002878722048/2926845450665984/STEM/e965b444-13ae-43bd-b609-5f5bac543f48.png?resizew=156)
(1)要经过平面
内的一点
和棱
将木料锯开,在木料表面应该怎样画线?(借助尺规作图,并写出作图说明,无需证明)
(2)若
,
,当点
是矩形
的中心时,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897002878722048/2926845450665984/STEM/e965b444-13ae-43bd-b609-5f5bac543f48.png?resizew=156)
(1)要经过平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c52091eb745de866044477641a7c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8745717601cd14b46c2298919b41b502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f9660760804ff01bbc9319b7342191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f96c341e13ce6cbbc5975f0ef53001.png)
您最近一年使用:0次
2022-03-01更新
|
588次组卷
|
4卷引用:吉林省吉林市2021-2022学年高三上学期第二次调研测试数学(文)试题
吉林省吉林市2021-2022学年高三上学期第二次调研测试数学(文)试题(已下线)重难点03 立体几何与空间向量-2022年高考数学【热点·重点·难点】专练(全国通用)(已下线)专题08 立体几何解答题常考全归类(精讲精练)-1河北省石家庄市十五中2021-2022学年高一下学期期中数学试题
名校
解题方法
5 . 已知直三棱柱
中,侧面
为正方形,
分别为
和
的中点,
为棱
上的动点(包括端点).
,若平面
与棱
交于点
.
与棱柱的截面,并指出点
的位置;
(2)求证:
平面
;
(3)当点
运动时,试判断三棱锥
的体积是否为定值?若是,求出该定值及点
到平面
的距离;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f223fc5e06e361260e74c9683677b18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0af8c959d6c754ca6f3a074557da0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914d46f7e72b55d2ff3d9bc38e02b31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914d46f7e72b55d2ff3d9bc38e02b31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa3c61d6c19e187b4b824b6f5610cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914d46f7e72b55d2ff3d9bc38e02b31d.png)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db26bad88328665735fadf82f44d6730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
您最近一年使用:0次
2023-07-12更新
|
1002次组卷
|
10卷引用:第二章 立体几何中的计算 专题四 空间几何体截面问题 微点5 空间几何体截面问题综合训练【培优版】
(已下线)第二章 立体几何中的计算 专题四 空间几何体截面问题 微点5 空间几何体截面问题综合训练【培优版】辽宁省协作校2021-2022学年高一下学期期末考试数学试题山东省德州市2022-2023学年高一下学期期末数学试题山东省德州市德城区第一中学2022-2023学年高一下学期期末数学试题(已下线)模块二 专题6 简单几何体的结构、表面积与体积 B巩固卷(人教B)(已下线)模块二 专题3 简单几何体的结构、表面积与体积 B提升卷江苏省无锡市江阴市两校联考2023-2024学年高一下学期4月期中考试数学试题江苏高一专题01立体几何(已下线)6.6简单几何体的再认识-【帮课堂】(北师大版2019必修第二册)【人教A版(2019)】专题16立体几何与空间向量(第五部分)-高一下学期名校期末好题汇编
名校
6 . 已知正方体
的棱长为2,若P是线段
上的动点(包括端点),则下列说法正确的有___________ (填写所有正确结论的编号)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/14/87d68cc7-68d8-4676-8d09-772c32209983.png?resizew=178)
①
;
②直线AP与直线BD所成角的取值范围为
;
③三棱锥
中,点
到面
的距离为定值
;
④过点P且平行于平面
的平面被正方体
截得的多边形的面积为
;
⑤若点Q在四边形
内(包括边界)运动,点F是棱
的中点,
平面
,则点
的轨迹的长度为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/14/87d68cc7-68d8-4676-8d09-772c32209983.png?resizew=178)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ccdd87b7ea0667fb405c305c6a497a.png)
②直线AP与直线BD所成角的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc113f7f4bfb97e441d3adb1b68bd5f6.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114ecab0ab272ea86979fb8cf0d1c32b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
④过点P且平行于平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
⑤若点Q在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501ad30a38299bb5d4577ce681ca210a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e0d886ac00c4a5c0fe764d566ec62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次
名校
解题方法
7 . 在长方体
中,底面
是边长为4的正方形,
,过点
作平面
与
分别交于M,N两点,且
与平面
所成的角为
,给出下列说法:
![](https://img.xkw.com/dksih/QBM/2022/7/5/3016088399233024/3016996132487168/STEM/59a23e98b8ba4cb5a36690fa638e3342.png?resizew=255)
①异面直线
与
所成角的余弦值为
;
②
平面
;
③点B到平面
的距离为
;
④截面
面积的最小值为6.
其中正确的是__________ (请填写所有正确说法的编号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df7fc746f8c4801d8f2f0471ba3297e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://img.xkw.com/dksih/QBM/2022/7/5/3016088399233024/3016996132487168/STEM/59a23e98b8ba4cb5a36690fa638e3342.png?resizew=255)
①异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8459f5f41754890d52b74652ef1f3af1.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896e293411e2fd0da215ff20781cb36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4508dc6d9c91157836be679c0543cac.png)
③点B到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0a582c36d62d83c16425b2f54b4354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53a3f4fbfdc9d743be259cb8a7b6b2f.png)
④截面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e74395b07e8153a0ef0bbcb5881013f.png)
其中正确的是
您最近一年使用:0次
2022-07-06更新
|
1299次组卷
|
8卷引用:河南省洛阳市创新发展联盟2022-2023学年高三摸底考试理科数学试题
解题方法
8 . 如图,在四棱锥
中,
平面
,底面
满足
,且
,
,三角形
的面积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08596ab7ad94031331c93db6f9ec549.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/93844118-2c54-463b-9d3e-fb4ae20aa9db.png?resizew=132)
(1)画出平面
和平面
的交线,并说明理由
(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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.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/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffbcd82b98a9ae69aa4ee28bb49a907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cfc9df9c661bd93b3f4f51f91534c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08596ab7ad94031331c93db6f9ec549.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/93844118-2c54-463b-9d3e-fb4ae20aa9db.png?resizew=132)
(1)画出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
9 . 如图,从平面
外一点
,引射线
、
、
,在它们上面分别取点
、
、
,使得
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/84add72e-36fd-44dd-9ea4-470ff8224181.png?resizew=147)
(1)画出平面
并判断两个平面的位置关系;
(2)若点
到平面
的距离为2,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c42149443e5eadab07087780ec7bec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/84add72e-36fd-44dd-9ea4-470ff8224181.png?resizew=147)
(1)画出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
您最近一年使用:0次
名校
10 . 如图,长方体
中,
,E在棱
上且
,在平面
内过点E作直线l,使得
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/a2343071-3812-4c53-982a-0f6e1267e406.png?resizew=208)
(1)在图中画出直线l并说明理由;
(2)若
,且直线
,求点P到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/010a32eb621302fe4a397f7a667d5071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf22706a4a5161683115d40c4a810c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c5c1789cab66ecf8d5b17216d43c96.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/a2343071-3812-4c53-982a-0f6e1267e406.png?resizew=208)
(1)在图中画出直线l并说明理由;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed9bcdfadbc0f7bf80a5e5baa2102bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2af03e059bc4c499c07d0130a4e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
您最近一年使用:0次