已知△ABC中的下列条件,解三角形:
(1)a=10,b=20,A=60°;
(2)a=2,c=
,
.
(1)a=10,b=20,A=60°;
(2)a=2,c=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0334bc85843337c4dfcfdc5c638f9f62.png)
2024高一下·江苏·专题练习 查看更多[1]
(已下线)第十一章 解三角形(知识归纳+题型突破)-单元速记·巧练(苏教版2019必修第二册)
更新时间:2024-03-19 21:34:43
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【推荐1】已知在
中,
为
中点,
,
,
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3274aac77f61dc25ab33cf0351b3810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc327192b90460f8845ef81229422784.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf3d14eb32760482c383221784ee3f3.png)
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【推荐2】如图所示,
是边长为1的等边三角形,
是等腰直角三角形,
,
交
于点
.
(1)求
的值;
(2)求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb3c143721938422cde08e0690fac88.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/2011/5/4/1570137238552576/1570137244024832/STEM/bab8c65b15324a9cbcfd0a0211376086.png?resizew=164)
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