1 . 如图,某市人民广场正中央有一座铁塔,为了测量塔高
,小胡同学先在塔的正西方点C处测得塔顶的仰角为
,然后从点C处沿南偏东
方向前进140米到达点D处,在D处测得塔顶的仰角为
,则铁塔
的高度是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.70米 | B.80米 | C.90米 | D.100米 |
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4卷引用:河南省南阳市第一中学校2023-2024学年高一下学期5月月考数学试题
河南省南阳市第一中学校2023-2024学年高一下学期5月月考数学试题甘肃省武威市2023-2024学年高一下学期6月月考数学试题(已下线)期末测试卷02-《重难点题型·高分突破》(人教A版2019必修第二册)(已下线)第1套 复盘提升卷 (基础)【高一期末复习全真模拟】
2 . 已知
中,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2964fea2c107bbfd4a07fc97f4de5988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657921f28d9ebc92f154ac16d3599b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d75a838ebbe4ecb373ab5b92222883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72511f149a1b13af02d0e1421d3a63a5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5卷引用:陕西省西安市南开高级中学2023-2024学年高一下学期五月月考数学试卷
陕西省西安市南开高级中学2023-2024学年高一下学期五月月考数学试卷福建省晋江市养正中学2023-2024学年高一下学期5月期中考试数学试题(已下线)专题03 解三角形(1)-期末考点大串讲(苏教版(2019))(已下线)专题04 解三角形小题常考题型归类-期末考点大串讲(人教B版2019必修第四册)(已下线)第2套 全真模拟卷 (基础)【高一期末复习全真模拟】
名校
3 . 在三棱锥
中,
平面
,
,
,
,
,则三棱锥
外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb8e20db1fbb40f17dea52f951b907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4e8625ce7de5c831e15e678c763a77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/867beccc3dc4bf90ba2797a2af801da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 如图,在正三棱锥
中,
,点
分别是棱
的中点,则直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3648c864f9f58da1dbb166fee84cfeaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8336844a6d44809658e76cf5ef6210a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知圆锥的顶点为
,侧面面积为
,母线长为
为底面圆心,
为底面圆
上的两点,且
,则直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a1981496f89d8b410411f5df0bdf86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ae38d9a0ecdb0c70e19226d61159ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc790cfaa59a808c25a7edb95dc29fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 在空间四边形ABCD中,
分别是AB,CD的中点,
,则异面直线AD与BC所成角的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9c80b1105f4f091d2095d8ffc76be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2e6618b5423b14a547cd06a2118b62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 在
中,角
的对边分别为
.若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793f1806fef75e1dec64a95b84a19e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e563e032dfdef69b0f357060c27bd4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 在
中,内角
所对的边分别为
已知
的外接圆半径
是边
的中点,则
长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832a6ae04b25ef0896bd607cdcda60ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c904cfd440c5acd15d2c16aa830faebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e3476a6ec1a527dc6abbee1f74ac14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:黑龙江省齐齐哈尔市第八中学校2023-2024学年高一下学期6月月考数学试卷
9 . 革命烈士陵园内的革命烈士纪念碑,其中央主体建筑集棱台,棱柱于一体,极具对称之美.某同学准备在陵园广场上对纪念碑的高度进行测量,并绘制出测量方案示意图(如图),纪念碑的最顶端记为
点,纪念碑的最底端记为
点(
在
的正下方),在广场内(与
在同一水平面内)选取
两点,测得
的长为15米,在
两点处测得纪念碑最顶端
处的仰角分别为
和
,则纪念碑的高度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064e348ad2e99b15ae10f34615ffd9be.png)
A.17米 | B.16米 | C.15米 | D.14米 |
您最近一年使用:0次
10 . 重庆市酉阳山正阳楼现已竣工,它的建筑风格独特,融合了传统与现代的元素,现已成为新的网红打卡地.黔江中学高一21班某同学周末参加户外实践活动,为了测量楼高
,在
处测得楼顶
仰角为
,向右前行25米到达点
,此时测得楼顶
的仰角为
,梯步DF长为2.7米,坡度(即坡面的垂直高度
和水平宽度
的比)为
,则楼高为
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da080fd41cf18224a1b4433e5d3a2b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32aa5ec1a5466d6a7587c41ddb2becfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db20862b954cd1886f4765657a46d91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78ef615b8eb577818081e8a515fe473.png)
A.24米 | B.23.5米 | C.23.65米 | D.22.65米 |
您最近一年使用:0次