1 . 已知
的内角A,B,C的大小依次成等差数列,
,则
的外接圆半径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd3303b28404f0fdc6c215e1f435b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 在
中,角A,B,C的对边分别是a,b,c,且三边满足
,
,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e7aacee83efcae18952d967245949f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4376af85e07b29051a812ff3fcda61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知
非直角三角形,
是
的重心,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da927fcd8bbb7e1b32ae3575efeae306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8db9e271dc80e86b821908c6856042.png)
A.![]() | B.1 | C.![]() | D.2 |
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3卷引用:山西省临汾市名校联考2023-2024学年高一下学期5月质量检测数学试题
山西省临汾市名校联考2023-2024学年高一下学期5月质量检测数学试题金科新未来大联考2023-2024学年高一下学期5月质量检测数学试题(已下线)专题04 解三角形小题常考题型归类-期末考点大串讲(人教B版2019必修第四册)
4 . 已知
中,角A,B,C所对的边分别为a,b,c,若
,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d80c53a03fa03cd3212cc4ac70be1ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 在
中,内角
,
,
所对的边分别为
,
,
,已知
,则
( )
![](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/bdf6a568095cf24db73655a757bbd6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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531次组卷
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5卷引用:河南省濮阳市南乐县豫北名校2023-2024学年高一下学期5月月考数学试题
河南省濮阳市南乐县豫北名校2023-2024学年高一下学期5月月考数学试题(已下线)专题05 解三角形(1)-期末考点大串讲(人教B版2019必修第四册)福建省福州市部分学校教学联盟2023-2024学年高一下学期期末模拟考试数学试题(已下线)2024年高考全国甲卷数学(文)真题平行卷(基础)(已下线)2024年高考全国甲卷数学(理)真题平行卷(基础)
名校
解题方法
6 . 在
中,a,b,c分别为内角A,B,C的对边,且
.若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535558a37eb01c13a630332c044f03bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
A.1 | B.2 | C.3 | D.4 |
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7 . 中国古代建筑中重要的构件之一——柱(俗称“柱子”
多数为木造,属于大木作范围,其中,瓜棱柱是古建筑木柱的一种做法,即木柱非整根原木,而是多块用榫卯拼合而成.宁波保国寺大殿的瓜棱柱,一部分用到了“包镶式瓜棱柱”形式,即在一根木柱周围,根据需要再用若干根一定厚度的木料包镶而成的柱子,图1为“包镶式瓜棱柱”,图2为此瓜棱柱的横截面图,中间大圆木的直径为
,外部八根小圆木的直径均为
,所有圆木的高度均为
,且粗细均匀,则中间大圆木与一根外部小圆木的体积之比为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e7f30167e1135806fe9de641870b1e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86b1cfe63800f6fc02f999e64dd24b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
A.![]() | B.![]() |
C.3 | D.![]() |
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解题方法
8 . 在
中,角
对应的边分别为
,已知
,
,
,且
,则
的面积为( )
![](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/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46196aec06c25d5c8f9b1d3a8f50a889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761cf0ac3c23d8a05013064844f9caa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ce2ca9ebe0811c0e956968dd760e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 在
中外心为G,内角
,
,
的对边分别为
,
,
,且
,若
,则
( )
![](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/fcd6706d695be22612b863f4a6055b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca42630f4e1c5f6b242878530243944c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1698a4413ae2fb60ff8c3ba83f0852d5.png)
A.![]() | B.50 | C.25 | D.![]() |
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10 . 已知在
中,内角
的对边分别是
,且
的面积为
的中点为
,则
的最小值为( )
![](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/e031c9741bdd39f2935b62e8ca4fc6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3976e18382dd260d85c338fc7c53c820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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