如图,AB切⊙O于点B,OA=2
,AB=3,弦BC∥OA,则劣弧BC的弧长为( )
![](https://img.xkw.com/dksih/QBM/2019/5/19/2207174065102848/2212828489867264/STEM/67f6293cb1324dababffbd478a3ee616.png?resizew=171)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2019/5/19/2207174065102848/2212828489867264/STEM/67f6293cb1324dababffbd478a3ee616.png?resizew=171)
A.![]() | B.![]() | C.π | D.![]() |
14-15九年级上·山东泰安·期末 查看更多[6]
2014届山东省泰安市泰山区九年级上学期期末学情检测数学试卷2017春北师大版九年级数学下册:单元测试(三) 圆苏科版九年级数学上册综合检测试卷2019年四川省甘孜州道孚一中中考模拟数学试题河北省唐山市友谊中学2019-2020学年九年级上学期第2次月考数学试题(已下线)专题18 弧长和扇形的面积-2021-2022学年九年级数学下册链接教材精准变式练(北师大版)
更新时间:2014-03-26 15:32:45
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【推荐1】如图所示,已知三角形
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,AB是⊙O的弦,PA是⊙O的切线,若∠PAB=40°,则∠AOB=( )
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【推荐1】如图,四边形
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【推荐2】如图,已知四边形ABCD内接于⊙O,连结BD,∠BAD=105°,∠DBC=75°.若⊙O的半径为3,则弧BC的长是( )
![](https://img.xkw.com/dksih/QBM/2019/2/7/2135348333199360/2137594820812800/STEM/f33d8f5a98354620b77e4e71eaa37744.png?resizew=133)
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【推荐1】已知α为锐角,且cos(90°-α)=
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【推荐2】在
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A.等腰三角形 | B.等边三角形 | C.直角三角形 | D.等腰直角三角形 |
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