如图,
中,
,
,点
在
的延长线上,且
,连接
并延长,作
于
,若
,则△
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4dd6e7c88601b4c50b06f1238fdd95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4611ceb2a28f7a7e4d24266d7f99b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070bc896d35495237fd65576e9b6f88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/28/24b097c9-4578-42c6-9a61-4ea53e0172d4.jpg?resizew=190)
A.8 | B.10 | C.![]() | D.16 |
更新时间:2020-06-16 00:23:45
|
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单选题
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【推荐1】如图,锐角
中,
平分
平分
与
相交于点
,则下列结论①
;②连接
,则
;③
;④若
,则
.其中正确的结论是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/e4654163-6f72-4a22-b9d2-73f564612cfe.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c7dd7641f20d51811e58512ca174f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c0ba35621d2ca8eca59a33af4f4314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb050e6d4e5fb00f878c40228a96792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c87eb3ed1ee03bb5426d1a1ff1cde70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14dbafa1565aa5fb728b1b6edc1f8a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c948ee579698d258cf36314bfbee327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24116df25d537ac86e68211d7548818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a70f42dccbe717bd85872938e26412.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/e4654163-6f72-4a22-b9d2-73f564612cfe.png?resizew=177)
A.①② | B.①③ | C.①③④ | D.③④ |
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【推荐2】如图所示,已知△ABC和△BDE都是等边三角形.则下列结论:
![](https://img.xkw.com/dksih/QBM/2019/10/16/2313284363624448/2317489375346688/STEM/2002d38266bf49d6865de105c39bf8d2.png?resizew=179)
①AE=CD;②BF=BG;③∠AHC=60°;④△BFG是等边三角形;⑤FG∥AD.其中正确的有( )
![](https://img.xkw.com/dksih/QBM/2019/10/16/2313284363624448/2317489375346688/STEM/2002d38266bf49d6865de105c39bf8d2.png?resizew=179)
①AE=CD;②BF=BG;③∠AHC=60°;④△BFG是等边三角形;⑤FG∥AD.其中正确的有( )
A.2个 | B.3个 | C.4个 | D.5个 |
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【推荐1】如图,在平行四边形ABCD中,E是DC上的点,DE:EC=3:2,连接AE交BD于点F,则△DEF与△BAF的面积之比为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/14b78b8e-9064-4cb0-8b41-55327bff60bd.png?resizew=149)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/14b78b8e-9064-4cb0-8b41-55327bff60bd.png?resizew=149)
A.2:5 | B.3:5 | C.9:25 | D.4:25 |
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【推荐2】如图,在Rt△ABC中,∠C=90°,AB=10,BC=8,点F是AC上一点,且AF∶FC=2∶1,点E是边BC上一动点.将△CEF沿直线EF翻折,点C落在点P处,则点P到边AB的距离的最小值是( )
![](https://img.xkw.com/dksih/QBM/2022/5/31/2991301160927232/2991878033760256/STEM/27dcec17-c4c5-4953-83c5-d453ad8a1c49.png?resizew=152)
![](https://img.xkw.com/dksih/QBM/2022/5/31/2991301160927232/2991878033760256/STEM/27dcec17-c4c5-4953-83c5-d453ad8a1c49.png?resizew=152)
A.1.2 | B.1 | C.![]() | D.3.2 |
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