1 . 如图,M是直线
在第二象限部分上的一个动点,连接
,将
顺时针旋转
得到线段
,N是x轴正半轴上一个动点,P为
的中点,Q为
的中点,连接
.下列同学关于
的说法中,正确的是__________ .
小兰:
为定值,长度为2.
小虎:
为定值,长度为4.
小天:
有最小值,最小值为2.
小灿:
有最大值,最大值为4.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3319ff1fccda7edf5514db4bcbdb33c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3319ff1fccda7edf5514db4bcbdb33c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
小兰:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
小虎:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
小天:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
小灿:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/2d63d800-c11f-480c-a1a7-ebc6b3bf95b1.png?resizew=183)
您最近一年使用:0次
2 . 如图,相互平行的三条直线
,
,
,
与
,
与
之间的距离分别为1,3,若在三条直线上各取一点,构造一个等腰直角三角形,那么作出的等腰直角三角形面积最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/3ddde589-b21f-4c18-99b1-8916305b18b8.png?resizew=148)
您最近一年使用:0次
名校
3 . 如图,已知正方形
的边长为1,点
是线段
上的动点,过点
作
,使
,连接
交
于点
,
交
于点
.以下结论正确的是_______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/dd698c73-6b01-412c-b6e9-822d99b95b65.png?resizew=294)
①
; ②
;
③点
到直线
的距离最大值为
; ④点
到直线
的距离最大值为
.
![](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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3a3137299ffaea0545cd45323f1af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cbd1d4bdcf1199ec44f9ba5348ac42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/dd698c73-6b01-412c-b6e9-822d99b95b65.png?resizew=294)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab16176d95f6289c0f301d95ef115138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c193747211812695275d04175560a39.png)
③点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
您最近一年使用:0次
4 . 如图,已知
中,
,D是
的中点,
于点E;连接
,则下列结论正确的是___________ .(写出所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/9/b60c9775-1380-48a8-93dc-93a33ba7d65c.png?resizew=174)
①
; ②当E为
中点时,
﹔
③若
,则
; ④若
,则
面积的最大值为2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4611ceb2a28f7a7e4d24266d7f99b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/9/b60c9775-1380-48a8-93dc-93a33ba7d65c.png?resizew=174)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b9ef25bfa729a423cde861fa12748d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e20c1b7f55cd8e68a7c3aa58bc944c5.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844659a605e726781cb3cf3ee3f31156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79de67bad8473d74405f9200f0f7d7a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
您最近一年使用:0次
2022-08-05更新
|
475次组卷
|
6卷引用:福建省福州市福清市2021-2022学年八年级下学期期中数学试题
福建省福州市福清市2021-2022学年八年级下学期期中数学试题(已下线)第3章 勾股定理综合测试卷 -【帮课堂】2022-2023学年八年级数学上册同步精品讲义(苏科版)(已下线)第3章 勾股定理 单元综合检测(难点)-2022-2023学年八年级数学上册同步精品课堂(苏科版)(已下线)2022年江苏省南通启东市九年级中考二模数学试题变式题16-20(已下线)24.2+与圆有关的位置关系(题型精讲精练)3(原卷版)(已下线)24.2+与圆有关的位置关系(题型精讲精练)1(原卷版)
名校
5 . 在
中,
,
,
的顶点P在BC上滑动,PM始终过点A,且
,在点P滑动的过程中:
![](https://img.xkw.com/dksih/QBM/2022/5/31/2991286169911296/2996178729148416/STEM/fdef1a0c-ac14-4c02-866b-dcb3e35ba5ff.png?resizew=304)
(1)当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
______ 时,
;
(2)BD的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566b100fb2ebe3d208f9b6527934218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80231325eb7329dc655e5edae07d9941.png)
![](https://img.xkw.com/dksih/QBM/2022/5/31/2991286169911296/2996178729148416/STEM/fdef1a0c-ac14-4c02-866b-dcb3e35ba5ff.png?resizew=304)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc45f0ba67119cf7fbdc5a7d6f1b858.png)
(2)BD的最大值为
您最近一年使用:0次
2022-06-07更新
|
458次组卷
|
5卷引用:2022学年河北省石家庄市外国语教育集团九年级下学期中考二模数学试题
2022学年河北省石家庄市外国语教育集团九年级下学期中考二模数学试题2022年河北省石家庄市四十三中二模数学试卷(已下线)2022年河北省中考数学变式题17-21(已下线)专题03 函数-5年(2018-2022)中考1年模拟数学真题分项汇编(河北专用)(已下线)第三十章 二次函数(B卷-拔高卷)-【单元测试】2022-2023学年九年级下数学分层训练AB卷【冀教版】
名校
6 . 如图,在平面直角坐标系xOy中,半径为1的半圆O上有一动点B,点
,
为等腰直角三角形,A为直角顶点,且C在第一象限,则线段OC长度的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2021/12/28/2882080351584256/2894046853914624/STEM/25880ca0-6e54-4ed9-94b8-977ba0657427.png?resizew=441)
您最近一年使用:0次
2022-01-14更新
|
466次组卷
|
2卷引用:北京市第五中学分校2021-2022学年九年级上学期12月月考数学试题
7 . 如图,已知点
为正方形
内一点,点
,
分别在
,
边上,且
,
,连接
,
,若
,
.
的最小值为________ ;
(2)在(1)的条件下,四边形
的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acd79bb9fb06f7c806eb6e17e4b613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3835e6398d18d162afebc92cd2ae9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98823cbc09ca52df1fbcc446eba3e44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)在(1)的条件下,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3029ea5516e56e8d20594c71929624f.png)
您最近一年使用:0次
8 . 如图,点A在x轴的正半轴上,点B在第一象限,连接
,将
绕它的中点P顺时针旋转
得线段
,点
恰好落在y轴的正半轴上,反比例函数
的图象经过点
.若
,点Q是x轴上一动点,则点
的最小值为_______ .
![](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/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4216a1c7fdff089ea00b2cc95e87b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb9931cd9364791203896bd731ed556.png)
您最近一年使用:0次
9 . 如图所示,
中,
且
分别为边
边上的高,
相交于点F, 连接
则下列结论中:①
垂直平分
;②图中有3个等腰三角形;③
;④
的长度恰与
的周长相等;⑤如图,若点P是高
上一个动点,点Q是边
上一个动点,连接
,则
的最小值等于
的长度,其中正确的是______ (只填序号).
![](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/84cd5b01de1c1ef91f2529eb1caf9d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1005d9def461d00556e3aced70ea2f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb0032f850bd19a3af6c44c416b0a2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.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/11b72b2cd16fee53bc61eafa6e1f862c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5a0a6e5b3f489a7032ea5116c96024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/730aefccd2c61f6368edaf0e0034965e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8563c09abcd5e110aa93d2f03d7363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/2023/7/9/3277306600415232/3282359920812032/STEM/54b5d02e5e374a61b3050300fe7c400a.png?resizew=194)
您最近一年使用:0次
10 . 如图,O是平面直角坐标系原点,
,
,
,
,P为线段
上一个动点,连结
并延长至点E,使得点E落在直线
上,以
,
为邻边作
,则对角线
的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e236c1bce14d0225438e4ef85102076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5762b748bde72fa0e2aa38ebda43ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd3fd00798e7ec50afafe7fa7a4f42e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e4db29c92a9b5a324f782d63b9240b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
您最近一年使用:0次