如图,等腰直角△ABC中,AC=BC,BE平分∠ABC,AD⊥BE的延长线于点D,若AD=2,则△ABE的面积为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/15/03dbf878-4aa4-4879-afc7-ef9e26dbd7b9.png?resizew=134)
A.4 | B.6 | C.2![]() | D.2![]() |
19-20八年级上·福建泉州·期末 查看更多[9]
福建省泉州市惠安县2019-2020学年八年级上学期期末数学试题河南省南阳市宛城区第三中学2020-2021学年八年级上学期第二次月考数学试题浙江省宁波市余姚市实验学校2021-2022学年八年级上学期期中数学试题江苏省苏州市吴江区实验初级中学2022-2023学年八年级上学期9月月考数学试题江苏省苏州市吴江实验中学2022-2023学年八年级上学期9月月考数学试卷四川省自贡市蜀光绿盛实验学校2023-2024学年八年级下学期4月月考数学试题安徽省宿州市泗县2023-2024学年八年级下学期期数学试题2024年甘肃省武威四中联片教研九年级第三次模拟数学试题2024年甘肃省武威十三中片区考九年级中考数学三模试题
更新时间:2020-03-19 15:34:58
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【推荐1】如图,在
中,
,
,
,连接
,若
、
分别为线段
、
的中点,则线段
的长为()
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,已知菱形
的边长为2,对角线
相交于点O,点M,N分别是边
上的动点,
,连接
.以下四个结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/d95be7bb-baba-49ad-8078-081fd0f1504c.png?resizew=249)
①
是等边三角形;②
的最小值是
;③当
最小时
;④当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d578394cd8e4d7a705599269c512960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20cb2c77ea29b6eabbc477bc3743859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f20b81526b746d94f6ea1fabba62162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25013f00a84c18b2d983430d44d2eb5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/d95be7bb-baba-49ad-8078-081fd0f1504c.png?resizew=249)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c04de3ba7a22d809317b65dcf1b5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a89efb10e95245a41f6c7a80189528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d25a5eb0363cdacd9afe9aacd868c6d.png)
A.①②③ | B.①②④ | C.①③④ | D.①②③④ |
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【推荐1】如图,等腰
中,
,
,
,于点
,
的平分线分别交
、
于
、
两点,
为
的中点,
的延长线交
于点
,连接
,下列结论:①
;②
为等腰三角形;③
平分
;④
,其中正确结论有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/f9a00446-fe7c-400a-9c39-9878dd7690fa.png?resizew=187)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e470b9b1ab6b8db7d19dc1e48ad6f09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d39f4ea085e3aed7c17b4c63bb159b2.png)
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A.①②③ | B.①③④ | C.②③④ | D.①②③④ |
您最近一年使用:0次
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【推荐2】如图,在正方形
中,点E是
上一点(不与C,D两点重合),连接
,过点C作
于点F,交对角线
于点G,交
边于点H,连接
.下列结论①
;②
;③当E是
的中点时,
;④当
时,
;其中正确的有( )
![](https://img.xkw.com/dksih/QBM/2022/11/3/3101814322094080/3102615706050560/STEM/d17e819f18f142fcbb197a259ae33b1b.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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![](https://img.xkw.com/dksih/QBM/2022/11/3/3101814322094080/3102615706050560/STEM/d17e819f18f142fcbb197a259ae33b1b.png?resizew=185)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
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【推荐1】如图,已知菱形
的边长为2,对角线
相交于点O,点M,N分别是边
上的动点,
,连接
,则下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/0c4357f7-92bc-4f69-a752-2596acbd1e17.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989c75a3fd02e4971cab421c88de92f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8dbf16d3adcc74fbea454665bc66ca5.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/0c4357f7-92bc-4f69-a752-2596acbd1e17.png?resizew=164)
A.![]() | B.![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() |
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【推荐2】如图,正方形
,点
在边
上,且
,
,垂足为
,
与
交于点
,延长
至
,使
,有如下结论:①
;②
;③
;④
.上述结论中,正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/98e2a01b-329c-40c5-9d4e-c92a30b81946.png?resizew=125)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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