1 . 在
中,
,
是斜边
上的一点,作
,垂足为
,延长
到
,连接
,使
.
是平行四边形.
(2)连接
,若
平分
,
,
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e6f5241f614c7d310cbf3e25a6d615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937b9e610b548398bc46ed29951e7f74.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b0b68a671bb4d5ff1d5c0cbcf86df55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7d2a2da5144f0bf6ce091c56b3d5a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937b9e610b548398bc46ed29951e7f74.png)
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今日更新
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193次组卷
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9卷引用:安徽省淮南市凤台县2022-2023学年八年级数学下学期第三次月考数学试题
安徽省淮南市凤台县2022-2023学年八年级数学下学期第三次月考数学试题福建省泉州市泉港区2022-2023学年八年级下学期期中数学试题(已下线)核心考点03平行四边形-【满分全攻略】2022-2023学年八年级数学下学期核心考点+重难点讲练与测试(浙教版)浙江省金华市东阳市江北初级中学等四校联2022-2023学年八年级下学期期中数学试题浙江省六校联考2022-2023学年八年级下学期期中考试数学试题(已下线)专题07+平行四边形与特殊平行四边形1(5大易错点分析)-备战2024年中考数学考试易错题(浙江专用)(已下线)第六章第02讲 平行四边形的判定(6类热点题型讲练)-【帮课堂】2023-2024学年八年级数学下册同步学与练(北师大版)浙江省宁波市北仑区北仑区小浃江中学2023-2024学年八年级下学期期中数学试题2024年吉林省长春市九台区中考数学三模试题
2 . 如图,将矩形纸片
对折,使边
与
完全重合,得到折痕
,再一次折叠纸片,使点A落在
上,得到折痕
.
的度数;
(2)当射线
恰好经过点D时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
(2)当射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12daf5fea89631b84f896939c503d88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2465ee1fec12351943f15055dfd6ec73.png)
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3 . 计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23a5ecc0dba9402a4ded34f8f63892f.png)
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4 . 已知关于x,y的方程组![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b76c17b638da3c2a708af0f63f31473.png)
(1)求这个方程组的解;
(2)当m取何值时,这个方程组的解x大于1,y不小于
.
(3)已知
,在(2)的条件下,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b76c17b638da3c2a708af0f63f31473.png)
(1)求这个方程组的解;
(2)当m取何值时,这个方程组的解x大于1,y不小于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00087d2a373565325eb56b0bb7129d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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5 . 在正方形网格中,每个小正方形的边长为1个单位长度,
的三个顶点A、B、C都在格点上.现将
平移.使点A平移到点D,点E、F分别是B、C的对应点.
;
(2)四边形
的面积为 .
(3)在网格中画出满足条件的格点P,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
(3)在网格中画出满足条件的格点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1290372565a6681fe32f801a7d5c4883.png)
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6 . 马康与王龙两人共同解方程组
由于马康看错了方程①中的a,得到方程组的解为
,王龙看错了方程②中的b,得到方程组的解为
,试计算
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f332883d7954681f8014b7dec08295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a8851bdea3f25d49189829f0543775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff51decd81d8d042424fed1a66856c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9d38ac62cd376456fc7c88580f36c2.png)
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7 . 计算及解方程组:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01282cfde475c301644e12f7b17ef82.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01282cfde475c301644e12f7b17ef82.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f964312e2d4f553459136c385174016f.png)
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8 . 如图,直线
与
轴交于点
,与
轴交于点
,若点
在
轴上,且
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9427de5d22d37859a110dbb234313c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61556c56e8b16fe2e80dbc858ed575bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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9 . 如图,
,
,
于
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
(已知)
______
(已知)
( )
______( )
(已知)
______(等量代换)
∥______(同位角相等,两直线平行)
______
______
(两直线平行,同位角相)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cecb98f2569e9c8fc6b29b2e5fece38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba02910a01689f636c71116e96dfdf33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53bb5ccceb997622add983ee2dc68522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7cfb45cbd40cf3f5ae6524be197038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4558f8acbba37cbeeb5ad16b7678e3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/488605357e42ad525459cbe2936a8c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b038fca80844e4c4f39b0bf4f9412c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afc0b85f3e9abb7199710a79cdcfd1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad83def63243a93e6cba72335a20cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fd20f0cde47bfba7d7c95ff7c1b96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d518dc5553bc24f8b58371097d628d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c06422e1d55db3077257af113df4bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc81f71979e87289fc81f75548a6b1a.png)
您最近一年使用:0次
10 . 已知:点A在直线
上,点
都在直线
上(点B在点C的左侧),连接
,AC,AB平分
,且
.
;
(2)如图2,点K为线段
上一动点,连结
,且始终满足
,
①当
时,在直线
上取点
,连接
,使得
,求此时
的度数.
②在点K的运动过程中,
与
的度数之比为定值,请直接写出这个定值,不需要说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b93dbe5272a5167ff4e2918bec864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9285d2f630ff8a4c58ff3504fee334ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ded8e58cfc563671419205641b527a4.png)
(2)如图2,点K为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1bd75fbe8bec72e27a3b3b6d48f138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5527455ae8a2ff9a00a76c41659a2e4.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14799d3aa76b2c190d9fc58c6fc3e8ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97223e7c3ff2c78bdedae87a8ba66112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9f28bd749980fd789988bb99d5fc8de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fdee9d60646d0052c0893d3d31d1682.png)
②在点K的运动过程中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a07d6f1b7b75c50f767f2e5886756832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6344778ed1e75c1a99e2268468081867.png)
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