1 . 一条直线与一个平面的位置关系有______ .
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解题方法
2 . 如图,在正三棱柱
中,侧棱长为2,底面三角形边长为1,则
与面
所成角的正弦值是______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/62847f37-71d5-443b-9329-4505521f57b9.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/62847f37-71d5-443b-9329-4505521f57b9.png?resizew=152)
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2020-11-22更新
|
484次组卷
|
2卷引用:中学生标准学术能力诊断性测试THUSSAT2021届高三诊断性测试 文科数学(一)试题
3 . 已知圆锥的顶点为
,过母线
、
的切面切口为正三角形,
与圆锥底面所成角为
,若
的面积为
,则该圆锥的侧面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4db9b82b67efe45a02fca32bfcf5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e49817548cb45b3d1e58570644c6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
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2020-04-26更新
|
473次组卷
|
3卷引用:2020届四川省宜宾市高三第二次诊断检测数学(文科)试题
2020届四川省宜宾市高三第二次诊断检测数学(文科)试题(已下线)第31练 直线、平面垂直的判定与性质-2021年高考数学(文)一轮复习小题必刷沪教版(2020) 必修第三册 精准辅导 第11章 11.2(3)锥体的表面积
4 . 在四面体
中,
平面
,
平面
,
分别为线段
的中点,当四面体以
为轴旋转时,直线
与直线
夹角的余弦值的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ead095da375d33297deaac038057b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9df740160690029ac1e730c85f20347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866862176201864acf32a1838fd7eda2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2020/5/7/2457820784181248/2458193619804160/STEM/230f7e8e4d76488283efc7d87e6d2791.png?resizew=155)
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20-21高一·江苏·课后作业
5 . 用
表示空间中三条不同的直线,
表示平面,给出下列命题:
①若
,则
;
②若
,则
;
③若
,则
;
④若
,则
.
其中真命题的序号是____ .(请将所有正确命题的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d8bf87219733e47b7165702aa098c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c416e5fcd84ae9a287348fbecb625706.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b377b6aae5bb8a04a95907194c268f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce590e7dd367445634136518979dc5b3.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42778b0910f9546a26a350628ef76bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d553efed052e7e0777728ef622a5c39.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759f5c1404e4ddb51a49c3e0575862aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d553efed052e7e0777728ef622a5c39.png)
其中真命题的序号是
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解题方法
6 . 直线
交平面
于
点,
与
所成角为
上
两点到平面
的距离分别为2、4,则
长为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35508d5da877d2bbb2190b20acc7b47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e453b6640e3dc4c7b7b2a996a2199ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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7 . 直线与平面所成角的范围______ .
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2022高一·全国·专题练习
8 . 已知直线
与平面α,满足
,则
与
的位置关系是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455b604f10c99dee2e294b88b7623c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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9 . 已知正方体
的棱长为2,
为体对角线
上的一点,且
,现有以下判断:①
;②若
平面
,则
;③
周长的最小值是
;④若
为钝角三角形,则
的取值范围为
,其中正确判断的序号为______ .
![](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/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd250fb1bebe4f610c7fe281217b38b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c040eb3985b66e8db65932fdb63f844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4645450a006f2c20087486d0833afbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ab13ef156d034b710d811e09b0be34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b590aaed2d5ef2610aa608faf95c02ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ab13ef156d034b710d811e09b0be34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fcec77177443519207ffc6afb988d0.png)
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2019-12-10更新
|
570次组卷
|
3卷引用:重庆市渝中区巴蜀中学2019-2020学年高三“一诊”模拟测试卷数学(理)试题
名校
10 . 给出下列说法:
①若直线
平行于平面
内的无数条直线,则
;
②若直线
在平面
外,则
;
③若空间中三条直线
满足
,则直线
与
一定垂直;
④垂直于同一直线的两条直线平行
其中正确说法的是__________
①若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff259ba50b735db32427fc0ebfbdfdaf.png)
②若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d07324ee4dec98ce18a2f37728791b.png)
③若空间中三条直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7702936429af8eb6069198ee6dfb4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
④垂直于同一直线的两条直线平行
其中正确说法的是
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2021-07-14更新
|
296次组卷
|
2卷引用:安徽省合肥市第一中学2020-2021学年高一下学期期中数学试题