解题方法
1 . 如图,四边形
中,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/11ee3fb7-cd05-4b33-821f-47b59aa4744b.png?resizew=179)
(1)求
的面积;
(2)求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc28e69c1ba0aac981256887f7dfa94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78002bca853929365a3f58082f3e7637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3827709157c7e1028027ce8062b2d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2efb46714efa6a13a121e2a7f89412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff9d0cc3cd2561c9d97b29edc09f197.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/11ee3fb7-cd05-4b33-821f-47b59aa4744b.png?resizew=179)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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2023-03-18更新
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3卷引用:新疆维吾尔自治区2024年1月普通高中学业水平模拟考试数学试题
2 . 在
中,角A,B,C所对的边分别为a,b,c,若
,
,
,则角A的大小为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71812e0762c0aaffb51cfef66156567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d26af5438a7f77f1b22a07c28c110f.png)
您最近一年使用:0次
2022-03-11更新
|
940次组卷
|
4卷引用:新疆维吾尔自治区2024年1月普通高中学业水平模拟考试数学试题