名校
1 . 在“某世界园艺博览会”园区内,北京园在
处,重庆园在
处,现要测量
与
之间的距离,在河对岸选取相距
的
、
两点,并测得
,
,
,则
与
之间的距离为______
.
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808a82b907d4c89269997fc03aaeade1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f8939f8c274cb26a8a6a5fa2469087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6662097cf94dc37facdaba44b49966d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad26988dbeaf244c3299fe51c0668cbe.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/4ce89b633e5d6bcf9406e3f9208fe06d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/8946e581-82cc-4089-b382-3a8c0f486924.png?resizew=157)
您最近一年使用:0次
2020-02-17更新
|
281次组卷
|
2卷引用:重庆市实验外国语学校2018-2019学年高一下学期高中学业质量调研抽测数学试题
2 . 如图,为了测量
两点间的距离,选取同一平面上
两点,测出四边形
各边的长度(单位:
):
,且
与
互补,则
的长为
.
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572564572160000/1572564577632256/STEM/21ba78918b2645f984a63e8e580a4fbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6767ec8f6dd2ad3e23239b55d25f35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b841cdd5fef12de7867028b8a42eab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce89b633e5d6bcf9406e3f9208fe06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1512afbb3317d9f40c1a2071b466f996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19798b6271b2713fbdb1ba959a5ddd82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/001fb1746a5c0d71c5d645e024fa8b3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce89b633e5d6bcf9406e3f9208fe06d.png)
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572564572160000/1572564577632256/STEM/21ba78918b2645f984a63e8e580a4fbc.png)
A.7 | B.8 | C.9 | D.6 |
您最近一年使用:0次
2016-12-04更新
|
910次组卷
|
7卷引用:2016届重庆一中高三下学期3月月考文科数学试卷
2016届重庆一中高三下学期3月月考文科数学试卷2015-2016学年广东省佛山一中高一下期中数学试卷吉林省梅河口市第五中学2019-2020学年高一4月月考数学试题(已下线)专题4.6 解三角形应用举例-2021年高考数学(文)一轮复习-题型全归纳与高效训练突破吉林省通化市梅河口五中2019-2020学年高一(4月份)第一次月考数学试题(已下线)专题4.7 正弦定理和余弦定理及其应用(精练)-2021年高考数学(文)一轮复习学与练(已下线)第21讲 解三角形应用举例(练) - 2022年高考数学一轮复习讲练测(课标全国版)
名校
3 . 甲船在
岛的正南方向
处,
千米,甲船以4千米/小时的速度向正北方向航行, 同时,乙船自
岛出发以6千米/小时的速度向北偏东60°的方向驶去,航行时间不超过2.5小时,则当甲、乙两船相距最近时,它们航行的时间是
![](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/77847ba0afc18466b17cea483eb29cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.2小时 | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
11-12高一下·内蒙古包头·期中
名校
4 . 如图,货轮在海上以35n mile/h的速度沿方位角(从正北方向顺时针转到目标方向线的水平角)为
的方向航行.为了确定船位,在B点处观测到灯塔A的方位角为
.半小时后,货轮到达C点处,观测到灯塔A的方位角为
.求此时货轮与灯塔之间的距离.
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500379402240/1572500385300480/STEM/1948112f25ce40c1b527abd8b130268d.png?resizew=33)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500379402240/1572500385300480/STEM/dee7dde72c0d422b881eb7d268d05ff1.png?resizew=33)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500379402240/1572500385300480/STEM/5dcddafe253b44998b4f7b9fa1a8ff73.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500379402240/1572500385300480/STEM/64cdd7a2a4e243e7aade67f897504f44.png?resizew=131)
您最近一年使用:0次
2016-12-04更新
|
594次组卷
|
7卷引用:重庆市铜梁一中2018-2019学年高一下学期期中数学试题
重庆市铜梁一中2018-2019学年高一下学期期中数学试题(已下线)2011-2012学年内蒙古包头33中高一第二学期期中考试文科数学试卷(已下线)2011—2012学年黑龙江虎林高中高一下学期期中数学试卷2015-2016学年福建省晋江市平山中学高二上学期期中理科数学试卷2017-2018学年高中数学苏教版必修五:第一章 章末过关检测卷甘肃省兰州市第四片区2020-2021学年高二上学期期中考试数学(文)试题沪教版(2020) 必修第二册 高效课堂 第六章 三角 6.3 解三角形(4)
名校
5 . 如图是某一河流地区平面示意图,
、
、
为三块湖泊区域,现在某勘测队要测量
之间的距离,为了减少成本只能在河流的西侧(如图左侧)测量.勘测队员在
处测得
,然后到
点测量出
,
,且
,最后又在
处测量到
,
,且
.(在本题目中
,
,以下计算最终结果都保留一位小数 )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/9d9d46a6-9549-4833-ad0d-daad83e3d1eb.png?resizew=131)
(1)请计算
的面积;
(2)计算
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3cbaef6648895a366bf56f415b70ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38281177237124b4676a59ef68a98c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe6b81b8c10042089ed7b7eb29c38bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98572e48dc6663f0b42a39545a4fa574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ee06a6fd38158d6752c48c78102d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edd529b7c31a85e5a886b2c767e341a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4eb56722b850eaf455ad4a14e4f96ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df276e9b9424486d59c747f1227b213c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c08ff2ece09ac501f40bfa7a4d1f6c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/9d9d46a6-9549-4833-ad0d-daad83e3d1eb.png?resizew=131)
(1)请计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
名校
6 . 如下图,为对某失事客轮
进行有效援助,现分别在河岸
选择两处
、
用强光柱进行辅助照明,其中
、
、
、
在同一平面内.现测得
长为100米,
,
,
,
.
(1)求△
的面积;
(2)求船
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7667366b88824899f016f5fb9dd2296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03a282f3471d78cf525afb7c8830ea7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ce4c68135005b2e74f37b30d1c7605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22371f6e14392264b79e324b8ba143bb.png)
(1)求△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
(2)求船
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2016/11/17/1573157095948288/1573157102190592/STEM/76608b0cc4114100a1dd6681707f8142.png)
您最近一年使用:0次
2016-12-05更新
|
777次组卷
|
5卷引用:重庆市第一中学校2019-2020学年高二上学期10月月考数学试题
名校
7 . 如图,在山底测得山顶仰角∠CAB=45°,沿倾斜角为30°的斜坡走800m至S点,又测得山顶仰角∠DSB=75则山高BC为
![](https://img.xkw.com/dksih/QBM/2018/4/17/1926211685236736/1928725626413056/STEM/36a3940de44747d5b29e056718f2cca6.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2018/4/17/1926211685236736/1928725626413056/STEM/36a3940de44747d5b29e056718f2cca6.png?resizew=117)
A.![]() |
B.800m |
C.800![]() |
D.400![]() |
您最近一年使用:0次
13-14高三·全国·课后作业
名校
8 . 如图,在坡度一定的山坡A处测得山顶上一建筑物CD的顶端C对于山坡的斜度为15°,向山顶前进100米到达B后,又测得C对于山坡的斜度为45°,若CD=50米,山坡对于地平面的坡角为θ,则cosθ=____ .
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571588040327168/1571588045692928/STEM/1b285a77-f6c0-4bc5-9517-a04ed7f170cc.png)
您最近一年使用:0次
2016-12-02更新
|
2137次组卷
|
3卷引用:重庆市育才中学2014-2015学年高一下学期期中数学(文)试题
重庆市育才中学2014-2015学年高一下学期期中数学(文)试题(已下线)2014年高考数学全程总复习课时提升作业二十四第三章第八节练习卷福建省泉州市晋江市养正中学2023-2024学年高一下学期3月月考数学试题
名校
9 . 在某次地震时,震中
(产生震动的中心位置)的南面有三座东西方向的城市
,
,
.已知
,
两市相距
,
,
相距
,
市在
,
两市之间,如图所示. 某时刻
市感到地表震动,
后
市感到地表震动,
后
市感到地表震动,已知震波在地表传播的速度为每秒
.求震中
到
,
,
三市的距离
![](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/8455657dde27aabe6adb7b188e031c11.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/9fe602366f921c3c0e58c3f524646be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3630ae86df0a097c003f99785b7ec6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34ca631b01e94bea6dddddfd35aba7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e850249e66889c001b9691944e180b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da75dc020f98aa9e12c70edbdfd39331.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/b7ccf382-4ddb-4147-bd4c-11f747bd3258.png?resizew=175)
您最近一年使用:0次
2019-12-07更新
|
114次组卷
|
2卷引用:重庆市第十八中学2018-2019学年高一下学期第一次月考数学试题
10 . 港口A北偏东30°方向的C处有一检查站,港口正东方向的B处有一轮船,距离检查站为31海里,该轮船从B处沿正西方向航行20海里后到达D处观测站,已知观测站与检查站距离21海里,问此时轮船离港口A还有多远?
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/b5aeab7b-3e19-4ffd-b04b-065c4126f277.png?resizew=130)
您最近一年使用:0次
2016-11-30更新
|
1218次组卷
|
7卷引用:2012-2013学年重庆市重庆一中高二上学期期末考试理科数学试卷
(已下线)2012-2013学年重庆市重庆一中高二上学期期末考试理科数学试卷(已下线)2011届东北师大附中、哈师大附中、辽宁实验中学高三第二次模拟考试数学理卷(已下线)2010-2011年黑龙江省鹤岗一中高一下学期期中考试理科数学2015届陕西省西安市高新一中高三5月模拟考试理科数学试卷2015届陕西省西安市高新一中高三5月模拟考试文科数学试卷安徽省蚌埠市第一中学2018-2019学年高二下学期期中数学(理)试题河南省焦作市第四中学2022-2023学年高一下学期3月月考数学试题