如图,四边形
和四边形
都是正方形,点B在
上,
,
的长为 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb024bae213862baeeebfab8f94ca423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/8e67d4ec-0d77-4a37-85ae-f0adb2f0f104.png?resizew=101)
更新时间:2023-12-30 01:25:24
|
【知识点】 以直角三角形三边为边长的图形面积
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【推荐1】如图,直线l上有三个边长分别为a,b,c的正方形,则有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c36a1287b4547910d595a9532412946.png)
______
(填“>”或“<”或“
”)
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【推荐2】如图,分别以直角三角形的三边向外作三个正方形,其面积分别是
、
、
,
,
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef354e5c5ff828cc8d27c71badd40f98.png)
________ .
![](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)
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