名校
1 . 如图,在正方体
中,点
在线段
上运动,则( )
![](https://img.xkw.com/dksih/QBM/2021/3/4/2670588236095488/2670631346364416/STEM/9051f43ebd5f45d795087ebda916dfed.png?resizew=231)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://img.xkw.com/dksih/QBM/2021/3/4/2670588236095488/2670631346364416/STEM/9051f43ebd5f45d795087ebda916dfed.png?resizew=231)
A.直线![]() ![]() |
B.二面角![]() ![]() |
C.三棱锥![]() |
D.异面直线![]() ![]() ![]() |
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9卷引用:广西百色市平果市铝城中学2023-2024学年高二上学期期中复习数学试题(一)
广西百色市平果市铝城中学2023-2024学年高二上学期期中复习数学试题(一)江苏省苏州市工业园区园区二中2019-2020学年高一下学期期中数学试题福建省南安市侨光中学2020-2021学年高一下学期期中阶段考试数学试题河北省廊坊市三河市第一中学2020-2021学年高一下学期第二次阶段考数学试题广东省揭阳市揭东区2020-2021学年高一下学期期末数学试题江苏省连云港市赣榆第一中学2020-2021学年高一下学期第二次月考数学试题湖南省岳阳市临湘市2021-2022学年高一下学期期末数学试题湖南省岳阳市湘阴县2021-2022学年高一下学期期末数学试题黑龙江省佳木斯市第十二中学(佳木斯市建三江第一中学)2021-2022学年高一下学期期末数学试题
名校
解题方法
2 . 已知正方体
的棱
的中点为
,
与
交于点
,平面
过点
且与直线
垂直,若
,则平面
截该正方体所得截面图形的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0424446817f60c18f8e4e3cc202ad99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec275f823ae17afdba53301fcbd2aa43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-03-13更新
|
346次组卷
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4卷引用:广西百色市平果市铝城中学2023-2024学年高二上学期期中复习数学试题(一)
3 . 如图,在空间几何体
中,底面
是梯形,且
,
,
,
是边长为2的等边三角形,
为
的中点.
(1)求证:
平面
;
(2)若
,求证:平面
平面
;
(3)若
,求几何体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef0f4f2fa1f55c4d82d11ac48566489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ab45031fdf731b354410a38e709eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c3058a4994cec4870f625e96fdabd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d32e76582bf550593fdef53e081225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7b603a64608e5b76215af4d3905c55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/649b564a-6571-4ea8-8936-c8d23f1a236f.png?resizew=238)
您最近一年使用:0次
2017-05-21更新
|
773次组卷
|
2卷引用:广西百色市平果市铝城中学2023-2024学年高二上学期期中复习数学试题(一)