1 . 如图,在菱形
中,其面积为
,
,则以
为边长的正方形
的边长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7dc603317eb90974c75efec9f02b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32436704a722d5e568ff5c175bf3c662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92aebf57b643a2b3323d5217be661078.png)
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2 . 如图,在菱形
中,
与
交于点O,
边的垂直平分线交
于点E,交
于点F,点G为
边中点,连接
,若
,
,则线段
的长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b707c3d2dcf2f53fea4ef045dd8f295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
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3 . 如图,在平行四边形
中,点E在
上,连接
,以
为边作菱形
,连接
交
于点O,若菱形
的面积为12,
,
,则线段
的长________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd0222df1bcc87b3c027dde6048b8da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd0222df1bcc87b3c027dde6048b8da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af045d2542c40f955a9de356b9b088c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af045d2542c40f955a9de356b9b088c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613dedf2d90e58591b7ac4a250ac7b5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d28ef094ee442ea990a249c4e6fc09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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4 . 如图,
为射线
上一点,
为射线
上一点,
,
.以
为边在其右侧作菱形
,且
与射线
交于点
得
;延长
交射线
于点
,以
为边在其右侧作菱形
,且
,
与射线
交于点
,得
;延长
交射线
于点
,以
为边在其右侧作菱形
,且
,
与射线
交于点
,得
;…,按此规律进行下去,则
的面积为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e57c789cfd4b0be7dbf63aa99435656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ba6213a3ef6cc4499fc83d808eed00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af81cbb5b7ca6a65b40e2b4222e2b4ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e8f426df6fa8b8e8dbbfd65ee47348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b2d0eac286b14f8b44acc1c124fa4f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ce30718d52bad5bf18a3baa6ade978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff12ab50f470597d439aaecf1f135e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68fe3cfe0dbd118938c06c52bc6ee04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f123d2a2c130be3663ab1a6c5a204e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b845f7250bf106fa4da9c9379677be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599b60a0581edc78145269006b57dae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6dd054ad1f10686527d22a799cde09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51af8e6eb2d000fc7a2bf9e4d59d58c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6e4102b64d148a03db4da5ce8c73f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7324d6e6523e827539621b6892ddef0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ba1b073967e023066f837ee3e29750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc8d1cd4a19f83b20670d0653cadd69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ed0de16ca550aebded18c537723f70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56a91e254f525ba327a70381394212ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1a606b89b103ea4a892efd169db9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5d94acf6ac035a858cc04e3d583682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75af3711af360cd95b567037c2ccc928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6dda4c9194dfe24566d4ed82e211686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c3ab0aca51a753032b23527ea30dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/900ebce1e8ff3926baedceacd65ffd02.png)
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5 . 如图,在菱形
中,
,点E是
的中点,点P是对角线
上的动点,连接
、
,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df01d40611ad128b314244ac8090cd95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d97b922f251e8e02b272778bb44635.png)
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2024-05-22更新
|
187次组卷
|
3卷引用:黑龙江省哈尔滨市第四十九中学2023-2024学年八年级下学期期中数学试题
6 . 菱形的周长为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588c3822b7812e711b4ad86647b15dc1.png)
,一条对角线长为4
,则菱形的面积是________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588c3822b7812e711b4ad86647b15dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
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7 . 如图,已知菱形
的边长为4,
,E为
的中点,若P为对角线
上一动点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2346f87b8950d35c46910e6cad8413.png)
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8 . 如图,在菱形
中,
,点E,F分别在
上,
与
关于直线
对称,点B的对称点是G,且点G在
边上,若
,
,则
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3355e2fa0ac6c675f02ee36c3ced4f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e37c2eab3fa989d8e986b7356eeb4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827beb23a9fe02a8b588645bcb82ce67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5212a3f8103e43a24d0ea8a0c68713b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
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9 . 菱形两邻角的比为
,边长为2,则该菱形的长对角线长是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc0da9bf8bf6b5007d2f14f9f885579.png)
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10 . 如图,在菱形
中,
,
的垂直平分线交对角线
于点
,垂足为点
,连接
,则
的度数为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a545759f6688ac1a063cacce4743e950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
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