如图,在边长相等的小正方形组成的网格中,点
,
,
,
,
都在网格的格则
的正弦值为( )
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-01-26 14:26:35
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【推荐1】如图,已知
,
,
是
上两点且
,若
,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/10ade145-6a8c-4fc9-94fe-d3992f6aa40e.png?resizew=275)
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【推荐2】已知,如图所示的网格是由9个相同的小正方形拼成的,图中的各个顶点均为格点,则
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1fc11da5dd156d8fdc1bcadf2871d8.png)
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【推荐1】如图,点A,B,C都是正方形网格的格点,连接
,
,则
的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
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【推荐2】如图中的每个小正方形的边长均相等,则
的值为( )
![](https://img.xkw.com/dksih/QBM/2022/1/12/2892756602970112/2895053490724864/STEM/cee122b5-ea45-40b9-9849-291ea0e170ac.png?resizew=134)
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【推荐1】如图,在Rt△ABC中,∠C=90°,AC=4,BC=3,则sinB的值等于( )
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【推荐2】如图,在
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