如图,在Rt
ABC中,∠ACB=90°,以
ABC的各边为边在
ABC外作三个正方形,S1,S2,S3分别表示这三个正方形的面积,若S1=2,S3=5,则S2=( )
![](https://img.xkw.com/dksih/QBM/2021/11/11/2848947294560256/2928426087292928/STEM/9a7942fc24d44ed6826e0db3ffda7bbd.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://img.xkw.com/dksih/QBM/2021/11/11/2848947294560256/2928426087292928/STEM/9a7942fc24d44ed6826e0db3ffda7bbd.png?resizew=184)
A.3 | B.7 | C.21 | D.29 |
更新时间:2022-03-03 20:01:02
|
【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,字母B所代表的正方形的面积为( )
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【推荐2】如图,“赵爽弦图”是由四个全等的直角三角形与中间的一个小正方形拼成的大正方形.若图中的直角三角形的一条直角边长为
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