1 . 在四边形
中,
交于点O,
.
是平行四边形;
(2)过点O作
交
于点E,连接
.若
,求
的度数.
![](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/cfae6afeecd3b5a244267f30bde10d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)过点O作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b836a0f9c491f85767e8f6695576fd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aac912c5c4f0cf2a433d88b46cf2c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721c75fcd58d3d54260aad0f82e09e37.png)
您最近一年使用:0次
名校
2 . 如图,在
中
垂直平分
,交
边于点
,交
边于点
,若
,
的周长为19,则
的周长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86338536656046e93b53672ade9a78b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f517953a21c2a45fd8465072c44bfc.png)
您最近一年使用:0次
2024-04-03更新
|
146次组卷
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2卷引用:2023年海南省海口市 琼山区海南中学九年级最后仿真模拟考(二)数学模拟预测题
3 . 已知
中,
,线段
的垂直平分线
分别交
于点D、E,若
的周长为
,
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86cae7cc6665dc8edfb9060075b3afb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e184a38c9392d48457634f2a2a37816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf2732c063f01d83e8f7cfc2b138732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
4 . 如图,在
中,
cm,
的垂直平分线交
于点D,交边
于点E,
的周长等于36cm,则
的长等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/3b827d3a-0e50-48ae-8f6d-652fd3d623e3.png?resizew=120)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb262f3529a3e84959fe594b6628c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/3b827d3a-0e50-48ae-8f6d-652fd3d623e3.png?resizew=120)
A.12cm | B.16cm | C.20cm | D.24cm |
您最近一年使用:0次
2024-04-03更新
|
37次组卷
|
2卷引用:山东省烟台爱华双语学校(五四制)2023-2024学年七年级上学期第三次质量检测数学试题
5 . 如图,在△ABC中,
,分别以A,B为圆心,大于
长为半径画弧,两弧交于M,N两点,直线
交
于点D,交
于点E,连接
,若
的周长为10,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
2024-04-03更新
|
96次组卷
|
2卷引用:2023年辽宁省大连市六月份名校联盟中考数学模拟预测题
6 . 已知,如图1,在平行四边形
中,对角线
,
,
,如图2,点
从点
出发,沿
方向匀速运动,速度为
,过点
作
交
于点
;将平行四边形
沿对角线
剪开,
从图1的位置与点
同时出发,沿射线
方向匀速运动,速度为
,当点
停止运动时,
也停止运动.设运动时间为
,解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/dc433808-a813-4700-a4ae-f80a18cd4f13.png?resizew=470)
(1)当
为何值时,点
在线段
的垂直平分线上?
(2)设四边形
的面积为
,试确定S与
的函数关系式,并求S的最大值;
(3)连接
,试求当
平分
时,四边形
与四边形
面积之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafddfd80f69337909f6eac0f0dbfd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432043f79e122f291c47453013042704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cd4a1c8087ef697d82b321a3331211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b676dfde981c8baab99e65a6e1966c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](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/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc2d9b900111188aca83126dff97f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d052b5bd3c89f73ca3465afbb85088.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/dc433808-a813-4700-a4ae-f80a18cd4f13.png?resizew=470)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8f887360a533f0a25b0b34fb11f0a1.png)
(2)设四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf90d2a071b54a1b32384e1027722c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb194fd63b75af067ba10dee7471d299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cd8576a1aaed7e787af3f5b19822a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f8752f7eea7702a9b8b498f6fc41e7.png)
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名校
7 . 如图,已知
,
为边
上一点,请用尺规作图的方法在边
上求作一点
,使
.(保留作图痕迹,不写作法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/0fad4a370cf245c60505557c744f0b50.png)
您最近一年使用:0次
2024-04-02更新
|
73次组卷
|
29卷引用:2023年陕西省陕西师范大学附属中学九年级下学期第一次模拟考试数学试题
2023年陕西省陕西师范大学附属中学九年级下学期第一次模拟考试数学试题陕西师范大学附属中学2022-2023学年八年级上学期末数学试题2023年陕西省咸阳市渭城区中考一模数学试题(已下线)1.3 线段的垂直平分线-2022-2023学年八年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(北师大版)2023年陕西省西安爱知初级中学中考一模数学试题(已下线)黄金卷3-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(陕西专用)广东省梅州市兴宁市下堡中学2022-2023学年七年级下学期期中数学试题陕西省西安市鄠邑区2022-2023学年八年级下学期期末数学试题广东省梅州市兴宁市2022-2023学年七年级下学期期中数学试题广东省梅州市大埔县玉瑚中学2022-2023学年七年级下学期期中数学试题陕西省西安市碑林区铁一中学2022-2023学年八年级下学期3月月考数学试题陕西省西安市雁塔区第二中学2022-2023学年八年级下学期第一次月考数学试题陕西省西安市雁塔区陕西师范大学附属中学2023-2024学年九年级上学期第一次月考数学试题陕西省延安市志丹县县域初中期中联考2023-2024学年八年级上学期期中数学试题陕西省渭南市潼关县2023-2024学年八年级上学期期中数学试题陕西省汉中市汉台区2022-2023学年九年级上学期期末数学试题陕西省渭南市潼关县2023-2024学年八年级上学期期末数学试题2020年陕西西安市师大附中九年级下学期三模数学试题2021年陕西省西安市雁塔区高新第一中学中考数学二模试题(已下线)【万唯原创】2021年陕西省试题研究-讲册-第二部分 基础解答题型二陕西省陕西师范大学附属中学2021-2022学年九年级上学期期末数学试题2022年陕西省西安市高新一中中考八模数学试卷陕西省宝鸡市陈仓区2021-2022学年八年级下学期期中数学试题陕西省西安市爱知中学2021-2022学年八年级下学期第一次月考数学试题(已下线)YHmlsjsxBS741陕西省西安市第三中学2023-2024学年八年级下学期第一次月考数学试题陕西省西安市西北工业大学启迪中学2023-2024学年八年级下学期第一次月考数学试题陕西省咸阳市泾阳县姚坊中学2023-2024学年八年级下学期学月考数学试题陕西省咸阳市永寿县部分初中2023-2024学年八年级下学期期中数学试题
名校
8 . 如图,已知
,
,使得
,则下列选项正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/758be240-ae7f-422d-a080-cfe3529068ee.png?resizew=143)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c140c8f9ea942a9d794b00effefe96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f453d11617405becf5ac4c1d9fd357e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/758be240-ae7f-422d-a080-cfe3529068ee.png?resizew=143)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
9 . 如图,
中,
,
,
,
,
垂直平分
,点P为直线
上一动点,则
最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9178be39a580c4f63d0c55a8bc8020a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/5cebccbb-af94-4935-a944-a136f5eeb779.png?resizew=135)
您最近一年使用:0次
10 . 如图,
中,
,
垂直平分
,
的周长为20,
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65fc998d33cdf37c272f79cfd64b7b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/287d62c9-d1a4-43db-a10c-36a4f034ee2c.png?resizew=123)
您最近一年使用:0次