如图,
是
的角平分线,过点
作
交
于点
,
交
于点
.
![](https://img.xkw.com/dksih/QBM/2020/10/2/2562514250629120/2563312011132928/STEM/93ac302f2ffc4bc8aba6b12c8b702462.png?resizew=170)
(1)求证:四边形
为菱形;
(2)如果
,
,
,求菱形
的边长,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e210c9698063925ad2df6b6c1749571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59239d2d861274c15d23a8834e9db6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2020/10/2/2562514250629120/2563312011132928/STEM/93ac302f2ffc4bc8aba6b12c8b702462.png?resizew=170)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2330c01a4d2b5b20f106e3e48834d5c0.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18444ec3e5e3b8a0cf488732c34866d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2330c01a4d2b5b20f106e3e48834d5c0.png)
更新时间:2020-10-03 23:34:32
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【推荐1】如图,将一张矩形纸片ABCD沿直线MN折叠,使点C落在点A处,点D落在点E处,直线MN交BC于点M,交AD于点N.
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【推荐2】如图,在四边形
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【推荐1】如图,在平行四边形ABCD中,点E,F分别在AD,BC上,且
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【推荐2】如图,在四边形
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/73245904-070e-4ce9-ad95-693e0d5a8b9d.png?resizew=215)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/73245904-070e-4ce9-ad95-693e0d5a8b9d.png?resizew=215)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bfad3f7e65188bcf7f62ea5acdbf4a.png)
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【推荐1】如图所示,在菱形ABCD中,E是BC上一点,且AE=AB,∠EAD=2∠BAE.
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/8494c6ac-1d4b-499c-93c8-b9e4bb40e4b7.png?resizew=220)
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