名校
解题方法
1 . 如图,在
中,角
所对的边分别为
,已知
,
的平分线
交边
于点
边上的高为
边上的高为
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ada871ccdbd83b6ccbddbcd84521bc.png)
__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7330af1eaa4fbb442ebc7b47be6b6d7a.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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0d44899ceb7b3137a82f2498c6d9b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bea1b93dcf0514f157720793da1a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383d609af37a655a531e3e7441cd123e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa9e9cc8d1a0e6846523986552693cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d287c4df5c0cac5a4931edb43b01d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ada871ccdbd83b6ccbddbcd84521bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7330af1eaa4fbb442ebc7b47be6b6d7a.png)
您最近一年使用:0次
2024-06-16更新
|
218次组卷
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3卷引用:河南省濮阳市2024届高三第三次模拟考试数学试题
2 . 如图所示,A,B,C是相隔不远的三座山峰的峰顶,地理测绘员要在A,B,C三点进行测量在C点测得B点的仰角为30°,B与C的海拔高度相差180m;在B点测得A点的仰角为45°.设A,B,C在同一水平面上的射影为
,
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/727ca6f5-cfb1-41bd-bb39-9e333a5264c5.png?resizew=109)
(1)求A与C两点的海拔高度差;
(2)已知该地大气压强p(Pa)随海拔高度h(m)的变化规律是
(
),
是海平面大气压强,设A,C两处测得的大气压强分别为
,
,估计
的值.
参考数据:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7856b843caf384fca612ce663f21c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4cfbcf4ecbca8f964985f4a2d3700ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b227b38b45b5fce63a6bdad8adf113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c344854f82fe5540ff0e36f4e7d40a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/727ca6f5-cfb1-41bd-bb39-9e333a5264c5.png?resizew=109)
(1)求A与C两点的海拔高度差;
(2)已知该地大气压强p(Pa)随海拔高度h(m)的变化规律是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8cb0f8ef7498dc511ab8c73ce4f491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035ccabb772417a69e143b2490e75c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc1ff55b0d8b8ab417c8da783f2d798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff80062542b5acdcda2e310875865ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3270a1c8fa664705d500f3476da8631b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2ad9c958c6c76e3724ed54614f7f8e.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6d8da4e586ce4c9298e2c2ea45132a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/801d8b45accfddc5eb3b14f1eba85198.png)
您最近一年使用:0次
2022-10-10更新
|
252次组卷
|
5卷引用:河南省濮阳市2022-2023学年高三上学期毕业班阶段性测(二)理科数学试题
解题方法
3 . 在
中,角A,B,C所对的边分别为a,b,c,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
________ ;若
,
,点P是
的中点,点M,N分别在线段
,
上,
,
,则
的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21ae1451291968dba74fe05be6406ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc36a94547a040f34392addf7b2fd3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1021e013e3e0f7b2797a3647fdc2f1a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e755959a8931ce9beae06453e979ca3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
您最近一年使用:0次
2020-06-12更新
|
427次组卷
|
3卷引用:河南省濮阳市2020届高三第二次模拟考试数学(文)试题
名校
4 . 如图,在
中,
,
,
,点
在边
上,且
,将射线
绕着
逆时针方向旋转
,并在所得射线上取一点
,使得
,连接
,则
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e7f748d88b4eadfd1643c6b31fdf08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3a7e3355ee508b11f19c15e28dfeab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ce7dba0708f44ace65ccfb283144a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8b0acd214adce8b19df1e586d41be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4b17ce6e90cd3810a3696262e94c1e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/b56aac34-0b38-47f8-a29a-5737eaab930f.png?resizew=214)
您最近一年使用:0次
2019-06-25更新
|
1870次组卷
|
14卷引用:河南省濮阳市2022届高三下学期第一次模拟考试数学理科试题
河南省濮阳市2022届高三下学期第一次模拟考试数学理科试题【校级联考】河南、河北两省重点高中2019届高三考前预测数学(理)试题2019届吉林省吉化第一高级中学校高三下学期第三次模拟数学(文)试题2019届吉林省吉化第一高级中学校高三下学期第三次模拟数学(理)试题辽宁省抚顺一中2020届高三高考数学(文科)三模试题(已下线)2021届普通高等学校招生全国统一考试数学考向卷(六)2020届四川省阆中中学高三下学期第一次在线考试(3月)数学(文)试题辽宁省朝阳市建平县2018-2019学年高二下学期期末数学试题湖南省衡阳市第八中学2019-2020学年高三下学期2月网上月考数学(理)试题湖南省衡阳市第八中学2019-2020学年高三下学期2月网上月考数学(文)试题(已下线)专题03 三角(第二篇)-备战2020高考数学黄金30题系列之压轴题(新课标版)(已下线)【新教材精创】9.1.1正弦定理(第1课时)练习(1)江西省九江第一中学2020-2021学年高一下学期期末考试数学试题河南省郑州市新郑市第一中学2022-2023学年高一下学期6月月考数学试题