如图,点E是▱ABCD对角线BD上的一点.
(1)请用尺规作图法,过点E作EG∥CD;(不要求写作法,保留作图痕迹)
(2)在(1)的条件下,在直线EG上截取EF=CD且点F在点E的下方,连接AE、BF、CF,若∠ABE+∠BFC=180°,求证:四边形ABFE是菱形
(1)请用尺规作图法,过点E作EG∥CD;(不要求写作法,保留作图痕迹)
(2)在(1)的条件下,在直线EG上截取EF=CD且点F在点E的下方,连接AE、BF、CF,若∠ABE+∠BFC=180°,求证:四边形ABFE是菱形
![](https://img.xkw.com/dksih/QBM/2020/11/26/2601267637977088/2604792494481408/STEM/b6c704c5a6a74821963e3b437c9c8943.png?resizew=174)
更新时间:2020-12-01 14:06:48
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适中
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【推荐1】如图,在
中,
,D是
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,交
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.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/8d173f1e-db0c-46ee-869d-9eb196864682.png?resizew=89)
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(1)说明:
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【推荐2】如图,正方形
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解答题-证明题
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解答题-作图题
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【推荐1】如图,在平行四边形
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(2)在(1)所作的图形中,证明四边形
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∴①______.
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证明:四边形
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∵
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解答题-证明题
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适中
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【推荐2】如图,在
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