下列几组数中,能作为直角三角形三边的是( )
A.32,42,52 | B.3,4,4 | C.2,3,5 | D.![]() ![]() ![]() |
更新时间:2017-11-23 19:31:20
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【知识点】 判断三边能否构成直角三角形解读
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【推荐1】如图,在
中,D是
的中点,若
,
,
,则
的长为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/e11a52ee-7271-4e3f-8dd5-26e30254d2fd.png?resizew=249)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6f3d14d4c0d628472a0b5dbd603f53.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/e11a52ee-7271-4e3f-8dd5-26e30254d2fd.png?resizew=249)
A.![]() | B.![]() | C.13 | D.12 |
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【推荐2】下列条件中,不能判定
为直角三角形的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
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