如图,在
中,
,以
的三边为边分别向外作等边三角形
,
,
,若
,
的面积分别是10和4,则
的面积是( )
![](https://img.xkw.com/dksih/QBM/2019/11/28/2343646901387264/2344333309566976/STEM/0c40a41a-477b-4efd-a150-3c3c4782c499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/178a27068cf5517ad64f211af10256ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58ce012fc93e0e293a2b94382da26ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668d01ace117cfb8d6a06f7784995716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afdf73024aa5ba652a0e76af561bdfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58ce012fc93e0e293a2b94382da26ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668d01ace117cfb8d6a06f7784995716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afdf73024aa5ba652a0e76af561bdfa6.png)
![](https://img.xkw.com/dksih/QBM/2019/11/28/2343646901387264/2344333309566976/STEM/0c40a41a-477b-4efd-a150-3c3c4782c499.png)
A.4 | B.6 | C.8 | D.9 |
更新时间:2019-11-29 14:21:14
|
【知识点】 以直角三角形三边为边长的图形面积
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较难
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【推荐1】如图,
中,
,
,
.分别以
、
、
为边在
的同侧作正方形
、
、
,四块阴影部分的面积分别为
、
、
、
.则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100bb28abda3a65c2a61fa6db2e3f8d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae7f709cd4bf123f329605b2f9ea679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
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A.18 | B.20 | C.22 | D.24 |
您最近一年使用:0次
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【推荐2】如图,已知1号、4号两个正方形的面积之和为7,2号、3号两个正方形的面积之和为4,则a、b、c三个正方形的面积之和为( )
![](https://img.xkw.com/dksih/QBM/2019/10/18/2314212458774528/2317565935771648/STEM/afdaded40d034967ba04c3c3c3670c2f.png?resizew=358)
![](https://img.xkw.com/dksih/QBM/2019/10/18/2314212458774528/2317565935771648/STEM/afdaded40d034967ba04c3c3c3670c2f.png?resizew=358)
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您最近一年使用:0次