1 . 如图,矩形
中,
,
,在边
上取一点E,使
,过点C作
,垂足为点F,则
的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1ac3ab8d3ce5e61fd2f89761f80976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80125e48498ac9c548732e2af1b1758d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/11/7e102fd0-e89f-43a7-ad92-35eab5bef87c.png?resizew=147)
您最近一年使用:0次
2 . 如图,在正方形
中,
,
,
,
,垂足分别是
,
,连接
,若
,正方形
与正方形
的面积之比为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c627c657d0139d1c7cc99ddb83f1a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063b97b04842da4fe4098706f5abcea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd49aa229fd2042d23d98d930a7bd80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f49d1de7c6dfc04b6e84e23eec0a1d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d8fe9a516c89a9939a01350eaf7ed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48dbcee0a8db094aabd22e1ff3a50f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41d4de39daabc2601bf96a9801e8bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8470182e3a1b46a1e48f02a4f098d688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
A.4 | B.3 | C.2.5 | D.2 |
您最近一年使用:0次
名校
3 . 如图,在矩形
中,
,
分别是
,
边上的点,
平分
,
,以
,
为边作矩形
,
与
相交于点
.则有下列结论:①
;②当
是
的中点时,
;③连结
,则
;④
.其中正确的结论是______ (填写正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f5af7cdf388a47357c119f42140f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1f13007c6d134c50004c62dc240707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2291de85a2a29ff360a4515cce99c804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0c4cd3af896d1aaadd4f4a1fdaaba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8f887360a533f0a25b0b34fb11f0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8165f676d268d16ebf85746c6e54315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e009885fbf2cb3390fd3072f3b4db64.png)
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4 . 如图,在平行四边形
中,
,点
是
的中点,连接
并延长,交
的延长线于点
,连接
,
.
的长.
(2)若
.
①求证:四边形
是菱形;
②若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f78015d1cce755eae8a2db74106902.png)
①求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61510c34c5795d7261569b4d09098271.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f48d1cbd6610c5daa16ea33deab9406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
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5 . 如图,在
中,对角线
,
交于点
,
,
,垂足分别为
,
.
;
(2)若
,求
的长;
(3)若
,
,当
时,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac18b0388014ae20b2add2975ef56aa.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/db614b42dd6f5e38f821b6c83e752e8c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77f0690b8f72e947e2cb7127e3345c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d48e9deca35c034db4734cf9d2ddf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
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6 . 如图1,在平面直角坐标系平行四边形
中,点C坐标为
,点A在x轴上,
,
.动点P从点O出发,沿射线
以每秒2个单位的速度运动,同时,动点Q从点A出发沿
边向点O以每秒1个单位的速度运动.当点Q到达点O时,点P也随之停止运动,设运动时间为t秒.
的长为 ,
的长为 ;
(2)当t为何值时,线段
恰好被
平分?
(3)如图2,若在y轴上有一点D,使得以P,Q,C,D为顶点的四边形是平行四边形,则点D的坐标为 (直接写出答案).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee73294987312155754dd9f6c007dba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6b00747893da5b5434c45caec0d009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241832fba1fb0325dd221d06fee3eaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
(2)当t为何值时,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)如图2,若在y轴上有一点D,使得以P,Q,C,D为顶点的四边形是平行四边形,则点D的坐标为 (直接写出答案).
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7 . 如图,在平行四边形
中,
,点E、F分别在边
和
上,
.
(1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de8e751925ac39ec1ad6316574c6ce5.png)
________ ;
(2)若点E、F在分别是边
和
的中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a4765150caa1c9778fc27efd39eef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4abe766d05fec99d4486f573bc38f9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608067b780675c039e783fbb0ee4c221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de8e751925ac39ec1ad6316574c6ce5.png)
(2)若点E、F在分别是边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
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8 . 如图,在
中,
,
是对角线
上的两点,且
.
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada55c12a53a4c469e052445547bed96.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
您最近一年使用:0次
2024-04-30更新
|
140次组卷
|
16卷引用:浙江省杭州市萧山区萧山区红垦学校2023-2024学年八年级下学期期中数学试题
浙江省杭州市萧山区萧山区红垦学校2023-2024学年八年级下学期期中数学试题浙江省杭州市萧山区2023-2024学年八年级下学期期中数学试题北京市丰台区2018-2019学年八年级下学期期末数学试题山东省聊城市阳谷县2019-2020学年八年级下学期期末数学试题河北省廊坊市三河市2020-2021学年八年级下学期期末数学试题江苏省南通市崇川区东方中学2020-2021学年八年级下学期第二次月考数学试题江苏省南通市八一中学2021-2022学年八年级下学期期中数学试题江苏省连云港市海州区新海初级中学2021-2022学年八年级下学期期中数学试题北京市人大附中西山学校2022-2023学年八年级下学期数学统练3(3月考)山东省聊城市阳谷县实验中学2022-2023学年八年级下学期6月月考数学试题陕西省渭南市潼关县2022-2023学年八年级下学期期期中数学试题江苏省宿迁市青华中学2022-2023学年八年级下学期学情调研测试数学试题江苏省苏州市2022-2023学年八年级下学期期中数学试题陕西省宝鸡市陇县2023-2024学年八年级下学期期中数学试题 北京交通大学附属中学2021-2022学年九年级上学期开学考试数学试题 福建省福州市延安学校2023-2024学年九年级下学期开学考试数学试题
名校
9 . 如图,已知矩形纸片
,
,
,将B点折到
的中点E,则
的长度为______ ,折痕
的长度为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d649afbddd907f0dfec1420f02f82fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2024-04-25更新
|
161次组卷
|
2卷引用:浙江省杭州市西湖区公益中学2023-2024学年八年级下学期期中考试数学试题
10 . 在平面直角坐标系中,过点
的直线与反比例函数
的图象的另一个交点为B,与
轴交于点P,若
,则点P的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1571abd840aff6d43ec6bd0489fdb95e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498bcfd1aac03057dcd0adef2dd113a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2700a3103aef7c7cdb1ab54bf964639b.png)
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