在
中,
,
,
的对边分别是
,
,
,下列条件中,能判断
是直角三角形的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() ![]() ![]() |
C.![]() ![]() | D.![]() |
更新时间:2020-11-03 20:55:36
|
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【推荐1】如图,在菱形
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![](https://img.xkw.com/dksih/QBM/2021/1/27/2649306641760256/2660617595453440/STEM/80a87536-145f-4d90-bcd8-93726df0fa16.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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名校
【推荐2】如图,△ABC中,∠C=80°,若沿图中虚线截去∠C,则∠1+∠2=( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/6488c619-c057-4a79-8a8b-acd968265289.png?resizew=131)
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【推荐1】如图,在△ABC中,AB=AC,∠BAC=108°,若AD、AE 三等分∠BAC,则图中等腰三角形有( )
![](https://img.xkw.com/dksih/QBM/2017/12/27/1847514148249600/1852486347808768/STEM/385a643b666f4d1b982bb20fd0eaa723.png?resizew=153)
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【推荐2】如图,已知
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【推荐1】下列条件中,不能判断△ABC为直角三角形的是 ( )
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