在矩形ABCD中,E是AD延长线上一点,F、G分别为EC、AD的中点,连接BG、CG、BE、FG.
(1)如图1,① 求证:BG=CG;
② 求证:BE=2FG;
(2)如图2,若ED=CD,过点C作CH⊥BE于点H,若BC=4,∠EBC=30°,则EH的长为______________.
(1)如图1,① 求证:BG=CG;
② 求证:BE=2FG;
(2)如图2,若ED=CD,过点C作CH⊥BE于点H,若BC=4,∠EBC=30°,则EH的长为______________.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/03c2fb94-b1e7-427c-a5bc-a847d8940ddc.png?resizew=150)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/96d55b68-9fab-42f5-bc5c-55c4f01f84f3.png?resizew=180)
更新时间:2020-07-03 11:11:01
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解答题-作图题
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适中
(0.65)
【推荐1】如图,矩形
中,对角线
的垂直平分线交
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![](https://img.xkw.com/dksih/QBM/2020/6/10/2481767462182912/2484490701340672/STEM/2e00eca0f61a45b389545c6470af8eae.png?resizew=153)
(1)根据题意将图形补画完整(要求尺规作图,保留作图痕迹,不写作法);
(2)证明四边形
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9766e5eb6796dafc5ffe212afdfc43c0.png)
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解答题-证明题
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【推荐2】如图,在▱ABCD中,点E、F、G、H分别在边AB、BC、CD、DA上,AE=CG,AH=CF.
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(2)若EG平分∠HEF,求证:四边形EFGH是菱形.
(1)求证:△AEH≌△CGF;
(2)若EG平分∠HEF,求证:四边形EFGH是菱形.
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解答题-作图题
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名校
【推荐1】如图,在
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(1)尺规作图:作线段
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(2)求证:
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(1)尺规作图:作线段
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(2)求证:
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解答题-证明题
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【推荐2】如图,A,B是
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(1)求证:四边形
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(1)求证:四边形
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(2)延长
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解答题-证明题
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适中
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【推荐1】如图,矩形ABCD中,AB=4,BC=
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(1)求证:△ABP∽△PCE;
(2)当P为BC中点时,E恰好为CD的中点,求
的值;
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(1)求证:△ABP∽△PCE;
(2)当P为BC中点时,E恰好为CD的中点,求
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(3)若
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解答题-问答题
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适中
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【推荐2】如图,已知矩形ABCD中,E是AD上的一点,F是AB上的一点,EF⊥EC,且EF=EC,DE=4cm,矩形ABCD的周长为36cm,求AE的长.
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您最近一年使用:0次
解答题-证明题
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适中
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【推荐1】已知四边形
是矩形,点
在
上,
,
与
相交于点
,且
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(1)求证:
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(2)求
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(1)求证:
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(2)求
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(3)若
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解答题-证明题
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适中
(0.65)
【推荐2】如图,在矩形ABCD中,E为BC的中点,AE⊥BD于点F,连接CF.
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(1)求证:AB=CF;
(2)若
,求DF的长.
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(1)求证:AB=CF;
(2)若
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您最近一年使用:0次