在棱长为
的正方体
中,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.异面直线![]() ![]() ![]() |
B.异面直线![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.二面角![]() ![]() |
21-22高一·全国·单元测试 查看更多[6]
(已下线)第八章 立体几何初步 (练基础)(已下线)江苏省南通市如皋市2022-2023学年高二上学期期末数学试题(已下线)专题训练:线线角、线面角、面面角求解(已下线)专题10 空间角、距离的计算-期中期末考点大串讲(苏教版2019必修第二册)(已下线)专题强化二:异面角、线面角、二面角的常见解法 (2)(已下线)模块四 专题6 重组综合练(江苏)期末终极研习室(高二人教A版)
更新时间:2023-01-20 17:31:03
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【推荐1】已知正方体
,则下列四个结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.直线![]() ![]() | B.异面直线![]() |
C.![]() | D.直线![]() |
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【推荐2】在直三棱柱
中,点
是
的中点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69db345fb12c9339f2af441dc6aecbc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164736a929c7a24685200637ece75e83.png)
,点
为侧面
(含边界)上一点,
平面
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69db345fb12c9339f2af441dc6aecbc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164736a929c7a24685200637ece75e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7502eee6f33e8c940dec63ab6473c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b6053e396df2cd152e1329fce766d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba9e20d667d04bf3ee7f55cc795ce01.png)
A.![]() |
B.直线![]() ![]() ![]() |
C.点![]() ![]() ![]() |
D.线段![]() ![]() |
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【推荐1】已知点
是平行四边形
所在的平面外一点,如果
,
,
,下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317a7d8f62c5daeb3f963f392d32bdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a9a87d18bca7451b1d26cfb42dfda1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e75f928f2166dd6e2bb52500f1383bf.png)
A.![]() | B.![]() ![]() ![]() |
C.![]() | D.![]() |
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【推荐2】在正三棱柱
中,
,
,
与
交于点
,点
是线段
上的动点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
A.![]() |
B.存在点![]() ![]() |
C.三棱锥![]() ![]() |
D.直线![]() ![]() ![]() |
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【推荐1】如图,在四棱锥
中,底面
是边长为2的菱形,
,侧面
为正三角形,且平面
平面
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988292849590272/2989128808906752/STEM/55dc86d5-d77f-4733-9fc3-a53d8049063d.png?resizew=340)
![](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/c6e0b64d25ddd18454f88e40c45d7d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988292849590272/2989128808906752/STEM/55dc86d5-d77f-4733-9fc3-a53d8049063d.png?resizew=340)
A.异面直线![]() ![]() ![]() |
B.三棱锥![]() |
C.二面角![]() ![]() |
D.![]() ![]() ![]() |
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【推荐2】把边长为
的正方形
沿对角线
折起,当以
四点为顶点的三棱锥体积最大时( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
A.![]() |
B.直线![]() ![]() ![]() |
C.平面![]() ![]() ![]() |
D.四面体![]() ![]() |
您最近一年使用:0次