名校
解题方法
1 . 记
的内角
的对边分别为
,面积为
,且
.
(1)求
的外接圆的半径;
(2)若
,且
边上的高
,求角
.
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0807b342134e3c7408901ae8f52e2834.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b409809543bae9f5e231a83e515dbbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f4ee68a4283024d214e5841ed1ba79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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名校
2 . 在
中,
,
,
的外接圆为圆O,P为圆O上的点,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7578b53de65f7d7770ddc7e80a5e395e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f536964d96829a5d2d8e48c386877d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59880e470359d8e9faf6ae5ce155cf2a.png)
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2024-04-22更新
|
905次组卷
|
3卷引用:浙江省台金七校联盟2023-2024学年高一下学期4月期中联考数学试题
名校
解题方法
3 . 已知
的内角
所对的边分别为
且
与
垂直.
(1)求
大小;
(2)若
边上的中线长为
,求
的面积的最大值.
![](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/b40be1f0e3dd9284361ef55e02bcfa69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b48749a00b391957ca26b3b0d7f09d9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17779573bcb5c394e706ce40e215c9eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-04-22更新
|
1417次组卷
|
3卷引用:浙江省台金七校联盟2023-2024学年高一下学期4月期中联考数学试题
浙江省台金七校联盟2023-2024学年高一下学期4月期中联考数学试题(已下线)模块三 专题2 解答题分类练 专题5解三角形(解答题)【人教B版】黑龙江省大庆市大庆中学2023-2024学年高一下学期5月期中考试数学试题
名校
解题方法
4 . “奔驰定理”因其几何表示酷似奔驰的标志得来,是平面向量中一个非常优美的结论.奔驰定理与三角形四心(重心、内心、外心、垂心)有着神秘的关联.它的具体内容是:已知
是
内一点,
的面积分别为
,且
.以下命题正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb90417652d97e7c3f5a6d5926a7d48f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccb3de366206f32e0c9045e63b2e205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf4b6e78e857749e0da486c5c4f0583.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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名校
解题方法
5 . 在
中,角
所对的边分别为
,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750b0632de1902a43526bec4e8b281d8.png)
(1)求角
的值;
(2)若
且
,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/750b0632de1902a43526bec4e8b281d8.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fa79a550591eb9e1bd07bced3a08fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3798d6c2e5eac9c1d8b044efd5081acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880488a9d92463c0344a0818a5d10268.png)
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名校
解题方法
6 . 已知
的内角
所对的边分别为
,面积为
,若
,
,则
的形状是( )
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5ccc5a8219f23d4b331a00cc9ab9d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a2f4a9a15c9ab9635aed95d572e290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.等腰三角形 | B.直角三角形 | C.正三角形 | D.等腰直角三角形 |
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2024-04-18更新
|
425次组卷
|
2卷引用:浙江省三锋教研联盟2023-2024学年高一下学期4月期中考试数学试题
名校
解题方法
7 .
中,角A、B、C所对的边长分别为a、b、c,
,
.
(1)求角B的最大值,以及边长b的最大值;
(2)设
的面积为S,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee462ae9f94817cd2f7695858e7b7f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988b7e964e313579ab8869d67d5be007.png)
(1)求角B的最大值,以及边长b的最大值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c1776377b54b787747e959aea85c64.png)
您最近一年使用:0次
名校
解题方法
8 . 下面有关三角形的命题正确的是( )
A.若![]() ![]() ![]() |
B.在![]() ![]() ![]() ![]() |
C.在![]() ![]() |
D.在![]() ![]() ![]() ![]() ![]() ![]() |
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名校
解题方法
9 . 已知正实数
满足
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383c71d6c2ce3b9fc8d9f5209c3b4840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d032179e5cae4c47198599af71d214.png)
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2024·全国·模拟预测
10 . 在①
,②
,③
这三个条件中任选一个补充在下面的问题中,并解决该问题.
问题:在
中,角
所对的边分别为
,且______.
(1)求
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe35553bae71742e27266d7e37c32b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3d099f120d7485cd0dafa17586782a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7fa1fca57fd2e35c21921ec95d9929.png)
问题:在
![](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)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0cdfb6d592897c6485ce1741677846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
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