名校
1 . 在
中,角
,
,
的对边分别为
,
,
,且
,则角
为______ ;若
的面积为
,
为
边的中点,则
的最小值______ .
![](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/771df4a2c45e3b5f133720185fc8c140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
名校
解题方法
2 . 在
中,角A,B,C所对的边分别为a,b,c,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127a6e2f5fc1c34380d2938d6e5c1d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4465b28ea4ce1a8338d7a9402c5d1397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
您最近一年使用:0次
2021-09-12更新
|
461次组卷
|
5卷引用:黑龙江省哈尔滨师范大学附属中学2020-2021学年高一下学期4月第一次月考数学试题
黑龙江省哈尔滨师范大学附属中学2020-2021学年高一下学期4月第一次月考数学试题(已下线)11.2正弦定理(第1课时)-【上好课】2021-2022学年高一数学同步备课系列(苏教版2019必修第二册)广东省东莞市万江中学2022-2023学年高一下学期3月月考数学试题上海市松江一中-2024届高三上学期期中数学试题(已下线)6.4.3 余弦定理、 正弦定理 第2课时 正弦定理(分层作业)-【上好课】
解题方法
3 . 已知
,
且
,则
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ee0da554e49ecd3b5aa91551a23766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7502eee6f33e8c940dec63ab6473c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
4 . 已知△ABC的面积为
,
,则△ABC的周长等于_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddc141d502a2d4bb806dc1fdcf6e820.png)
您最近一年使用:0次
5 . △ABC三个内角A、B、C所对的边分别为a、b、c,已知
,三角形的面积为
,则边c长为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc36b578ce6ec8bb9936ea90d154eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
您最近一年使用:0次
6 . 某学生在劳动技术课活动中设计了如图所示的几何图形,其中
为半圆的圆心,则该图形的面积为_________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7cbaf0425d4a7b580638856610e259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e31351d7b971bda5c97c662fc71103a.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718817023401984/2800759752638464/STEM/b56210fc-51b9-4e7a-99de-945a700b07d5.png?resizew=337)
您最近一年使用:0次
名校
解题方法
7 .
的三个内角
,
,
所对的边分别为
,
,
,若
,
,
,则
的面积等于__________ .
![](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/09947ea5c9ea0fe010027f2aa91138b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5156599f6e2ddba26303be4760c29dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2021-09-04更新
|
613次组卷
|
2卷引用:甘肃省天水市第一中学2020-2021学年高三第八次模拟数学(理)试题
8 . 已知⊙O的半径为1,A,B为圆上两点,且劣弧AB的长为1,则弦AB与劣弧AB所围成图形的面积为__________ .
您最近一年使用:0次
名校
9 . 若
,
,则平行四边形ABCD的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7486bed66aa57ac9a3c6391ec446e127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0febca76a4b1bf5824c3489a2bc8cb.png)
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名校
10 . 某圆锥母线长为2,底面半径为
,则过该圆锥顶点的平面截此圆锥所得截面面积的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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2021-09-02更新
|
750次组卷
|
4卷引用:福建省尤溪县、宁化两校联考2020-2021学年高一下学期期中考试数学试题