题型:解答题-证明题
难度:0.65
引用次数:243
题号:11321624
平行四边形 ABCD中,过点D作DE⊥AB于点E,点F在CD上,DF=BE,连接:BF,AF.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/18/a52cac11-6134-45af-a956-4e545fbc7e4a.png?resizew=198)
(1)求证:四边形BFDE是矩形;
(2)若AF平分∠BAD,且AE=3,DF=5,求矩形BFDE的面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/18/a52cac11-6134-45af-a956-4e545fbc7e4a.png?resizew=198)
(1)求证:四边形BFDE是矩形;
(2)若AF平分∠BAD,且AE=3,DF=5,求矩形BFDE的面积.
更新时间:2020-10-07 20:38:37
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,
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(2)若矩形
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(2)若E,F,G,H分别是OA,OB,OC,OD的中点,且DG⊥AC,OF=2cm,求矩形ABCD的面积.
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