名校
解题方法
1 . 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
|
1014次组卷
|
10卷引用:辽宁省协作校2021-2022学年高一下学期期末考试数学试题
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(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】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
解题方法
2 . 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
|
589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)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(已下线)专题08 立体几何解答题常考全归类(精讲精练)-1
名校
3 . 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
4 . 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
|
1300次组卷
|
8卷引用:河北省邢台市2021-2022学年高二下学期期末数学试题
5 . 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
6 . 如图,有一块正四棱柱形状的木料,
分别为底面棱
,
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/17/acef0cc9-49f1-4cd8-b951-45955de6a773.png?resizew=122)
(1)求点
到平面
的距离;
(2)现要沿着
和B将木料锯开,在木块表面应该如何画线?请在图中画出,并求出截面多边形的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbafedc202bd0d86c4dfdece9f8f4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91c0da042c5af6c3540849bb686bc03.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/17/acef0cc9-49f1-4cd8-b951-45955de6a773.png?resizew=122)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
(2)现要沿着
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
名校
解题方法
7 . 如图,在棱长为2的正方体
中,
,
,
,
分别是棱
,
,
,
的中点.
![](https://img.xkw.com/dksih/QBM/2022/4/8/2953920933175296/2955173307441152/STEM/57183ed0-a4b8-41a9-b7df-1a552e1ac5ab.png?resizew=206)
(1)求证:
,
,
,
四点共面,记过这四点的平面为
,在图中画出平面
与该正方体各面的交线(不必说明画法和理由);
(2)求点
到(1)中平面
的距离.
![](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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/2022/4/8/2953920933175296/2955173307441152/STEM/57183ed0-a4b8-41a9-b7df-1a552e1ac5ab.png?resizew=206)
(1)求证:
![](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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2022-04-10更新
|
645次组卷
|
3卷引用:贵州省普通高等学校招生2022届高三适应性测试数学(文)试题
贵州省普通高等学校招生2022届高三适应性测试数学(文)试题(已下线)回归教材重难点03 立体几何-【查漏补缺】2022年高考数学(文)三轮冲刺过关海南省海南中学2022届高三下学期第九次月考数学试题
名校
8 . 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)
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