如图,在直线上依次摆放着7个正方形,已知斜放置的3个正方形的面积分别是
,
,
,正放置的4个正方形的面积依次是
,
,
,
,则
的值为( )
![](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/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838a984dff7abdc750c97afd75e962eb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-27 15:34:25
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【推荐1】如图摆放的三个正方形,S表示面积,求S=( )
![](https://img.xkw.com/dksih/QBM/2016/5/13/1574205956415488/1574205962444800/STEM/61bf529a20584e93a3763ac2f28b034f.png)
![](https://img.xkw.com/dksih/QBM/2016/5/13/1574205956415488/1574205962444800/STEM/61bf529a20584e93a3763ac2f28b034f.png)
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【推荐2】如图,
中,
,
,点D在边
上(与B,C不重合),以
为边在
右侧作正方形
,过点F作
,交
的延长线于点N,连接
,交
于点P,给出以下结论:①
;②四边形
为矩形;③
;④
,其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/12/5b38024c-1fa4-4c71-bccb-4ced0b7659b8.png?resizew=137)
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【推荐1】如图,所有的四边形都是正方形,所有的三角形都是直角三角形,其中最大的正方形的边长为
,则图中所有正方形的面积的和是( )
![](https://img.xkw.com/dksih/QBM/2021/3/11/2675494851895296/2682201377251328/STEM/da1a1a85-75cf-4136-9778-5cf338dbbba3.png)
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【推荐2】如图,直线
同侧有三个正方形
,
,
,若
,
的面积分别为3和4,则
的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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【推荐1】如图,点E在正方形ABCD的对角线AC上,且EC=AE,Rt△FEG的两直角边EF,EG分别交BC,DC于点M,N.若正方形ABCD边长为6,则重叠部分四边形EMCN的面积为( )
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988440604901376/3008349076340736/STEM/2f60bd48cd114cd787bc15661bbd3062.png?resizew=189)
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988440604901376/3008349076340736/STEM/2f60bd48cd114cd787bc15661bbd3062.png?resizew=189)
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【推荐2】七巧板是我们祖先的一项创造,被誉为“东方魔板”.在一次数学活动课上,小明用边长为4cm的正方形纸片制作了如图所示的七巧板,并设计了下列四幅作品—“奔跑者”,其中阴影部分的面积为5cm2的是( )
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