如图,在
中,点
为
边上的一点,且
,
,过点
作
,
交
于点
,若
,则
的面积为是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8745717601cd14b46c2298919b41b502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8225b3e02f5a9f1fd5a09ada650cb78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/3/bb19f030-d05f-4158-af61-6f29a66338b0.png?resizew=209)
更新时间:2023-09-01 22:44:59
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【推荐1】如图,等腰△ABC中,AB=AC,∠BAC=45°,AD⊥BC于D.过C作CE⊥AB于E,交AD于H,EF⊥AC于F,交AD于G,连接BH.下列结论:①S△AEH:S△ACH=AE:AC;②EG∥BH;③AH=2CH;④
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【推荐2】如图:已知点C、D是直线AB上两点,点E,F为平面内两点,且∠ACE+∠FDB=180°,CF平分∠ECB,EH⊥AB于点H交CF于点O.则下列结论正确的是:____________ .
①EF∥AB;②CE∥DF;③∠FDB=2∠CFD;④∠FOE=
∠CDF.
①EF∥AB;②CE∥DF;③∠FDB=2∠CFD;④∠FOE=
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填空题
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适中
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【推荐1】把矩形
绕点C顺时针旋转
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在
的延长线上,如果
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
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