如图,直线
上有三个正方形
,
,
,若正方形
,
的面积分别为
和
,则正方形
的边长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0b71b8d2c183154221f717ce09077b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/25/7fad8321-2c43-4bf0-a78a-b7d1da54ef25.png?resizew=228)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-09-25 14:30:05
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【推荐1】如图,
为
内一点,
平分
,
,垂足为点
,交
于点
,
,若
,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,在直角梯形ABCD中,AD∥BC,∠B=90°,E为AB上一点,且ED平分∠ADC,EC平分∠BCD,则下列结论中错误的是( )
![](https://img.xkw.com/dksih/QBM/2019/1/9/2114940727148544/2118523248517120/STEM/2d887b623b5e42b28caec0c5d29f29d5.png?resizew=96)
![](https://img.xkw.com/dksih/QBM/2019/1/9/2114940727148544/2118523248517120/STEM/2d887b623b5e42b28caec0c5d29f29d5.png?resizew=96)
A.AE=BE | B.DE⊥CE | C.CD=AD+BC | D.CD=AD+CE |
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【推荐2】如图,以直角三角形的三边为直径向外作三个半圆,若较小的两个半圆面积
、
分别为5和11,则较大的半圆面积
为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/eeaf1b22-14b1-44a7-86d4-72e864809038.png?resizew=125)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/eeaf1b22-14b1-44a7-86d4-72e864809038.png?resizew=125)
A.6 | B.11 | C.16 | D.18 |
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