如图,在多面体
中,
是正方形,
,
,
,
为棱
的中点.求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d1125b47dec1c5e93143ee59ad862a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d550d73a827da587dffcb52e554affe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143afe58004d0d90294803bb712429d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a681d311a864d38cf306a0c137cbcca.png)
2024高三·全国·专题练习 查看更多[8]
(已下线)第03讲 直线、平面平行的判定与性质(八大题型)(讲义)(已下线)考点8 平行的判定与性质 2024届高考数学考点总动员(已下线)第一章 点线面位置关系 专题一 空间平行关系的判定与证明 微点5 平面与平面平行的判定与证明【基础版】8.5.3平面与平面平行练习(已下线)第10讲 8.5.3 平面与平面平行-【帮课堂】(人教A版2019必修第二册)(已下线)第八章 立体几何初步(二)(知识归纳+题型突破)(1)-单元速记·巧练(人教A版2019必修第二册)(已下线)8.5.3 平面与平面平行-同步题型分类归纳讲与练(人教A版2019必修第二册)(已下线)第六章立体几何初步章末二十种常考题型归类(2)-【帮课堂】(北师大版2019必修第二册)
更新时间:2023-11-12 15:42:10
|
【知识点】 证明面面平行
相似题推荐
解答题-证明题
|
较易
(0.85)
名校
解题方法
【推荐1】如图,在正方体
中,
分别是棱
,
,
,
的中点.
为梯形;
(2)求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/562b022158a42acccb8785cb75e5632a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea74bcb2642f3bdeb0f6d67b5baca43a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd61a751e4a47463b69923c771d085c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9189b58292cafb667004088b9b17c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a85c632e08ce1b355808bc7a9ad9a051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573d3f133de9f6595657a128bbd2489a.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f20ac8cec1d644e24eb900915d8b724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573d3f133de9f6595657a128bbd2489a.png)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
名校
【推荐2】如图,已知在四棱锥
中,底面
是正方形,
为等边三角形,
为
的中点,
为
的中点,
为底面的中心.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/20abf493-9615-4a88-a187-f5736d3d8124.png?resizew=218)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
平面
.
(2)求证:平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192eca994811b4830be330ad8206c93f.png)
平面
.
(3)求异面直线
与
所成角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9026fbd7897d459b4d559a4b99f2e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/20abf493-9615-4a88-a187-f5736d3d8124.png?resizew=218)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192eca994811b4830be330ad8206c93f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(3)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
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