1 . 如图,为了测量两山顶
间的距离,飞机沿水平方向在
两点进行测量,
在同一个铅垂平面内.若请你设计一个测量方案,则需要测量的数据可以是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/8989b7b0-f284-44ba-92a5-d446f18f73a7.png?resizew=200)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63368fb5c4feebe59c81bd5c90d8eaf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/8989b7b0-f284-44ba-92a5-d446f18f73a7.png?resizew=200)
A.![]() ![]() ![]() ![]() ![]() |
B.![]() ![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-12-06更新
|
224次组卷
|
2卷引用:安徽省亳州市蒙城县五校2023-2024学年高三上学期11月期中联考数学试题
2 . 在凸四边形
中,对角线
交于点
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/37af2b3c-11a9-40f1-945d-438bcf4854e5.png?resizew=160)
(1)若
,求
的余弦值;
(2)若
,求边
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854be43a71207548612f94b0b4f8f5ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc221e5fa40a0f89059aced0ff59f1a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/37af2b3c-11a9-40f1-945d-438bcf4854e5.png?resizew=160)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065f2c3527fcc9d84939c47ac8640643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5659734bb483b3c664278f488d5867c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2023·全国·模拟预测
名校
解题方法
3 . 已知在
中,角
,
,
所对的边分别为
,
,
,且
,
.
(1)求角
.
(2)若
的周长为15,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e821cc04f1492499386cdcca91e1404d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e2ee8d79045e7c83b9e30e12246876.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解题方法
4 . 如图,在四边形
中,
,
,
,
,
为边
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/8f0280a7-b309-41f1-9394-0d738eb6454e.png?resizew=163)
(1)若
,求
的面积;
(2)当
变化时,求
长度的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/8f0280a7-b309-41f1-9394-0d738eb6454e.png?resizew=163)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7bce5b3862e12e5c7d206c35052471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
您最近一年使用:0次
2023-11-29更新
|
74次组卷
|
3卷引用:山东省日照神州天立高级中学2023-2024学年高三上学期期中模拟考试2数学试题
山东省日照神州天立高级中学2023-2024学年高三上学期期中模拟考试2数学试题山西省晋中市灵石县第一中学2022-2023学年高一下学期5月月考数学试题(已下线)专题突破:解三角形中的最值与范围问题-同步题型分类归纳讲与练(人教A版2019必修第二册)
5 . 已知
,
,
分别为
的三个内角
的对边,若点
在
的内部,且满足
,则称
为
的布洛卡(Brocard)点,
称为布洛卡角.布洛卡角满足:
(注:
).则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec15e5cb6d4dc2cf6ba0bedd87514448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59cfa6513f26ed47a56cc8478ba5e701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d29c768a4125f2d0a774d3065a28ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5951b002c1d3337489320c5ff7c38893.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 在
中,角
所对的边分别为
,
,
,且
.
(1)若
,求
的周长;
(2)若
,求
的取值范围.
![](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/e9ef1ce414ac0d6905ba87a8e245110c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9467ab72028da2ac9269205ba7bffe50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc9c22e445fd2e7d7e33f87116dbd1a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1802e63b9f62d304800d45b45afaeb10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb20324b572d730c34724c421df7974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
您最近一年使用:0次
名校
解题方法
7 . 在中,内角
的对边分别为
,已知
,且
的面积为
,则边
的值为
您最近一年使用:0次
2023-11-28更新
|
763次组卷
|
3卷引用:山东省名校考试联盟2023-2024学年高三上学期期中检测数学试题
名校
解题方法
8 . 已知
的内角
的对边分别为
,且
.
(1)求
的值;
(2)若
,求
面积的最大值.
![](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/60e878129189fec23224ea7b1701c4f6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01b7f76a8608a65ae0531d91064e9d7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-11-27更新
|
1096次组卷
|
5卷引用:广西桂林、柳州、贺州、崇左四市2024届高三上学期跨市联合适应性检测数学试题
广西桂林、柳州、贺州、崇左四市2024届高三上学期跨市联合适应性检测数学试题广西普通高中2024届高三跨市联合适应性训练检测卷数学试题(已下线)第二篇 “搞定”解答题前3个 专题1 三角解答题【练】 高三逆袭之路突破90分福建省莆田市第四中学2024届高三上学期第三次月考数学试题江苏省南通市名校联盟2024届高三上学期12月学业质量联合监测数学试题
9 . 在
中,已知
,
,
.
(1)求
;
(2)若
为
上一点,且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b755ee4dda4a72063c6fba125720a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffc2817fa590affb5a760a25dc65308.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd01722c6f4bf06ae7d753938e5b8bc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b6d19fedaf8488f9637cd64efbca83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
解题方法
10 . 在
中,角
,
,
对边分别为
,
,
,
.
(1)求
;
(2)若
为锐角三角形,且
,求
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da4db03dc2ee3dd85051528bcf370bd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次