如图,在等腰
中,
是
的高线,E是边
上一点,分别作
于点F,
于点G,《几何原本》中曾用该图证明了
.过点B作
于点H,若四边形
的周长为20,且图中阴影部分的面积和为14,则四边形
的面积为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/bde531ed-911b-4dd9-aad8-7a434c03729d.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9593dcb41f89af96423c1f157b00d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1a1fd2fc33e89f357cef772ff6cd0e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70996fe58cb74bc77cb85577c38e41ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd27b64b553f69d1f8f550b9d5b093c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4782eec8be8f59f7abb03abcd415454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4782eec8be8f59f7abb03abcd415454.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/bde531ed-911b-4dd9-aad8-7a434c03729d.png?resizew=185)
A.20 | B.22 | C.24 | D.28 |
更新时间:2022-05-17 11:17:49
|
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【推荐2】如图,在以
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