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1 . 下列关于空间角的判断正确的是( ).
A.如果空间中的两个角的两条边分别对应平行,那么这两个角相等 |
B.两条平行直线与同一个平面所成的角相等 |
C.一条直线与两条异面直线中的一条所成角为![]() ![]() |
D.如果平面![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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2 . 正方体
中,棱长为2,
为
的中点,则异面直线
与
所成角的余弦值是____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/f5e884ca9429486026caa5e2310b0e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/c667be91-352e-4fb6-81f6-41d8d997870a.png?resizew=164)
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2020-10-17更新
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6卷引用:湖南省邵阳市新邵县2020-2021学年高二上学期期末数学试题
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3 . 在三棱柱
中,底面
为正三角形,侧棱垂直于底面,
分别是
的中点,
是
的中点.给出下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eaf6cc58a5a0a64a0e85adbf605dc64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
A.若![]() ![]() ![]() ![]() | B.![]() ![]() |
C.若该三棱柱有内切球,则![]() | D.平面![]() ![]() |
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4 . 如图,在长方体
中,
,
,
,下列说法中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/c12172f3-9398-4f75-a4de-8b09d439c2c4.png?resizew=141)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1192b3111a6dad01bba5227472bb4072.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/c12172f3-9398-4f75-a4de-8b09d439c2c4.png?resizew=141)
A.直线![]() ![]() |
B.平面![]() ![]() |
C.异面直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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2卷引用:湖南省张家界市2020-2021学年高一下学期期末数学试题
5 . 如图,在平面四边形
中,
,
分别是
,
的中点,
,
,
,将
沿对角线
折起至
,使平面
平面
,则在四面体
中,下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/d4a0fe17-09f7-4cdd-bb01-db94c8c8e357.png?resizew=354)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf832217cee8a4b9acad0531714fb91d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46571701ccaa18d3c844ab99ee6c30e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587458141d890533c0c32aa249a27ad0.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/dafb259e8372485bf3ca36ec4e37122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6414f4b3c146558f9a503600f53d44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5c6f918307097fc83013ef253baec9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/d4a0fe17-09f7-4cdd-bb01-db94c8c8e357.png?resizew=354)
A.![]() ![]() |
B.异面直线![]() ![]() ![]() |
C.异面直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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3卷引用:湖南省娄底市第一中学2020-2021学年高一下学期期中数学试题
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6 . 已知三棱锥
,若
平面ABC,
,则异面直线PB与AC所成角的余弦值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2aaed1e9ead175f30f7130569d0411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4564baf209de77802d46cda82995c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea7372e9ebae49df6f2169731c2adef.png)
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7 . 已知圆柱底面半径为
,高为
,
为上底底面的直径,两条母线
,点
是下底底面圆弧上的一个动点.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c95c0160e73beb94a4a1cbc0168e9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() |
B.该圆柱的内切球体积与该圆柱的体积之比为![]() |
C.三棱锥![]() ![]() |
D.点![]() ![]() ![]() |
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8 . 如图:正三棱锥P−ABC的底面边长为3,侧棱长为
,
,则下列叙述正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887683522248704/2889328041508864/STEM/ea5276473a024f0cbb597271eb2203de.png?resizew=262)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92fb3f37d950f3327a40a7f83985be48.png)
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887683522248704/2889328041508864/STEM/ea5276473a024f0cbb597271eb2203de.png?resizew=262)
A.正三棱锥的外接球的表面积为![]() |
B.AB⊥PC |
C.点E到面ABC的距离等于2 |
D.正三棱锥侧面积为![]() |
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9 . 在直三棱柱
中,
是
中点.
,
,
,
.则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/ee611973-4129-49e3-a3d5-6b04b85ca6f1.png?resizew=127)
![](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/51d0fdc5a00ca0e857b89a7e1420df29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e60250139e00fae15208a3e0311ce0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/ee611973-4129-49e3-a3d5-6b04b85ca6f1.png?resizew=127)
A.点![]() ![]() ![]() |
B.异面直线![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.过![]() ![]() ![]() |
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2卷引用:湖南省湘西自治州2020-2021学年高一下学期期末数学试题
10 . 设E,F,G,H分别是正方体ABCD-A1B1C1D1的棱AD,DD1,B1C1,C1D1的中点,则异面直线EF,GH所成的角等于____________ .
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