如图,在
中,D为AB上一点,连接CD,
,
,
,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e586311fca81baf28ca74aca8028d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d942e40c6aae482cd0d00116365228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/68200122-0ba8-4855-b452-e0175ef21e60.png?resizew=117)
更新时间:2023-04-06 14:22:59
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【推荐1】如图,在
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【推荐2】如图,在边长为2的正方形ABCD中,动点F,E分别以相同的速度从D,C两点同时出发向C和B运动(任何一个点到达即停止),连接AE,BF交于点P,过点P作PM∥CD交BC于M点,PN∥BC交CD于N点,连接MN,在运动过程中则下列结论:①△ABE≌△BCF;②AE=BF;③AE⊥BF;④线段MN的最小值为
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【推荐2】在矩形
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【推荐1】如图,等边△ABC的边长为3,点D在边AC上,
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(1)若△ADQ∽△BPC,则AQ=
(2)四边形PCDQ面积的最大值为
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【推荐2】如图,点P是矩形ABCD内一点,连接PA、PB、PC、PD,已知AB=3,BC=4,设△PAB, △PBC, △PCD, △PDA,的面积分别为
,
,
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,以下判断: ① PA+PB+PC+PD的最小值为10;②若△PAB≌△PCD,则△PAD≌△PBC ;③若
=
,则
=
;④若△PAB∽△PDA,则PA=2.4.其中正确的是_____________ (把所有正确的结论的序号都填在横线上)
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