如图,圆直径
与弦
相交于点
,且
,
,
,则弧
的长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75929268210da5976bc37d080da030dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f2b861f7ddc465a0f48559854407f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
A.![]() | B.![]() | C.![]() | D.![]() |
20-21九年级上·山东泰安·阶段练习 查看更多[2]
更新时间:2021-01-25 13:06:28
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【推荐1】如图,△ABC是等边三角形,AC=6,以点A为圆心,AB长为半径画弧DE,若∠1=∠2,则弧
的长为( )
![](https://img.xkw.com/dksih/QBM/2015/7/28/1573888955752448/1573888961585152/STEM/589d5b3adf2c47cc983116c140224635.png)
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![](https://img.xkw.com/dksih/QBM/2015/7/28/1573888955752448/1573888961585152/STEM/589d5b3adf2c47cc983116c140224635.png)
A.1![]() | B.1.5![]() | C.2![]() | D.3![]() |
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【推荐2】如图,
是半圆
的直径,
是半圆上两点,且满足
,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,点N在反比例函数
上,点M在反比例函数
上,连接
交y轴正半轴于点A,连接
,若
,则
的面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/3df11267-43a5-42da-a758-22618c1dc9cf.png?resizew=194)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b4f23770747042d68b0fa011762258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8cd8c02f888053eb59b0b7bf1f271c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d8d57d44169246811fb5ed7e55c6b0.png)
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【推荐2】如图所示,已知点E、F分别是△ABC中AC、AB边的中点,BE、CF相交于点G,S△EFC=1,则四边形BCEF的面积是( )
![](https://img.xkw.com/dksih/QBM/2018/11/17/2077309674856448/2082650444578816/STEM/107f2e368db244de8449b645315d00ff.png?resizew=98)
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A.7 | B.8 | C.9 | D.10 |
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