如图1,
,
,
,
.
(1)求
的面积;
(2)如图2,点M在边
上,点N在边
上,求
的最小值;
(3)如图3,点P是在边
上,过点P分别作直线
、直线
的对称点D、E,当
周长最小时,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348216467fda035329fe8fac46b39911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab926d89b65f26c12e3da73ef1e5cf68.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/13/366b3b87-9ce2-4b9c-a116-1f0994444e5c.png?resizew=381)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图2,点M在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e98288acdd662de9a3dae1fcf0368.png)
(3)如图3,点P是在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe4bdc5d9e833b23a1b916c06fc1a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
22-23八年级上·福建福州·期末 查看更多[3]
福建省福州市文博中学、现代中学、黎明中学三校联考2022-2023学年八年级上学期期末数学试题(已下线)压轴真题必刷01 实数和勾股定理(压轴30题5种题型训练)-2023-2024学年八年级数学上学期期末考点大串讲(北师大版)(已下线)猜题03 勾股定理(拔尖必刷45题9种题型专项训练)-2023-2024学年八年级数学上学期期末考点大串讲(苏科版)
更新时间:2023-09-23 09:44:23
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相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】如下图1,在平面直角坐标系中
中,将一个含
的直角三角板如图放置,直角顶点与原点重合,若点A的坐标为
,
.
(1)旋转操作:如下图2,将此直角三角板绕点O顺时针旋转
时,则点B的坐标为 .
(2)问题探究:在图2的基础上继续将直角三角板绕点O顺时针
,如图3,在AB边上的上方以AB为边作等边
,问:是否存在这样的点D,使得以点A、B、C、D四点为顶点的四边形构成为菱形,若存在,请直接写出点D所有可能的坐标;若不存在,请说明理由.
(3)动点分析:在图3的基础上,过点O作
于点P,如图4,若点F是边OB的中点,点M是射线PF上的一个动点,当
为直角三角形时,求OM的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b136c45d114d9432aa492909cda4f2.png)
(1)旋转操作:如下图2,将此直角三角板绕点O顺时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
(2)问题探究:在图2的基础上继续将直角三角板绕点O顺时针
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)动点分析:在图3的基础上,过点O作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d718b208bce3e2778a466b2ed8d5312f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984aefe3435838d44e0c562189351a38.png)
![](https://img.xkw.com/dksih/QBM/2020/9/20/2554093905387520/2554837772820480/STEM/bd051636e31344bbba00e7108955022d.png?resizew=94)
![](https://img.xkw.com/dksih/QBM/2020/9/20/2554093905387520/2554837772820480/STEM/e047f77a6431455592464b518ee58836.png?resizew=99)
![](https://img.xkw.com/dksih/QBM/2020/9/20/2554093905387520/2554837772820480/STEM/de7a88e64d814842a22b9103668ff78a.png?resizew=93)
![](https://img.xkw.com/dksih/QBM/2020/9/20/2554093905387520/2554837772820480/STEM/003151fc820e44e18c127a031631f77f.png?resizew=94)
![](https://img.xkw.com/dksih/QBM/2020/9/20/2554093905387520/2554837772820480/STEM/3f12332b14d74657af0e52c75b3de7f0.png?resizew=95)
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【推荐2】四边形ABCD中,∠ABC=∠ADC=90°,DA=DC,连接BD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/85725c6d-935a-48eb-bca6-18359ee6b0e3.png?resizew=657)
(1)如图1,求证:BD平分∠ABC;
(2)如图2,作AE
BD交CB的延长于E,作EG⊥DC于G,交BD于F,连接FC,AE=AD=FC,求证:DF=2DG;
(3)如图3,在(2)的条件下,连接DE交AB于P,作DQ⊥CF于H,交BC于Q,DB=4
,BC=5,求AP的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/85725c6d-935a-48eb-bca6-18359ee6b0e3.png?resizew=657)
(1)如图1,求证:BD平分∠ABC;
(2)如图2,作AE
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
(3)如图3,在(2)的条件下,连接DE交AB于P,作DQ⊥CF于H,交BC于Q,DB=4
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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名校
【推荐1】如图,点M,N分别是边长为
的等边
边
上的动点,点M从顶点A沿
向点C运动,点N同时从顶点C沿
向点B运动,它们的速度都为
,当到达终点时停止运动,设它们的运动时间为1秒,连接
交于点D.
;
(2)如图乙,连接
,若
,探究
与
之间的数量关系,并证明;
(3)如图丙,在点M,N运动的过程中,是否存在以点M,N,C为顶点的三角形是直角三角形的情况,若存在,请直接写出对应的运动时间t的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b1fe1b971b780e443a9b13621611c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6d50515fc65885d44cd6a3c41e6a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5237c3297decc86719c69d6027a97e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821f7f621a4a7a6eb47bac7d016fae94.png)
(2)如图乙,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02a64c39bbc4fe6a4d987084640c11e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(3)如图丙,在点M,N运动的过程中,是否存在以点M,N,C为顶点的三角形是直角三角形的情况,若存在,请直接写出对应的运动时间t的值;若不存在,请说明理由.
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名校
【推荐2】如图1,
中,点
是
的中点,点
是
上一点,
与
的延长线交于点
.
![](https://img.xkw.com/dksih/QBM/2020/12/28/2630304040869888/2681950615937024/STEM/f4499cab-743a-4417-90ae-b5ce75a2f5c9.png?resizew=420)
(1)填空:
____________;
(2)判断并说明
和
的数量关系;
(3)当
时.
①设
的度数为
,求
的度数(用含
的式子表示);
②如图2,如果
是
的直角三角形,那么
和
有怎样的数量关系,为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/142bf1560e9fb39736a8ff8d2730d4e6.png)
![](https://img.xkw.com/dksih/QBM/2020/12/28/2630304040869888/2681950615937024/STEM/f4499cab-743a-4417-90ae-b5ce75a2f5c9.png?resizew=420)
(1)填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5f441402ee632377b6bedeb060f3d9.png)
(2)判断并说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e6363330b33ca9feda927e6ffd3088.png)
①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685516a27697104e83b311d76efa17aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36719f1e764ee0e719b65c49fae84677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
②如图2,如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
您最近一年使用:0次
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【推荐1】综合与实践:
问题情境:数学课上,小王和小东两位同学利用三角板操作探究图形.
操作探究1:小王将两块全等的含
角的直角三角板按如图①方式在平面内放置,其中两锐角顶点重合于点
,
.已知
长
,则点
、
之间的距离为 .(写出具体解答过程)
操作探究2:小东将两块全等的含
角的直角三角板按如图②方式在平面内放置.其中两个
角顶点重合于点
,
与
重合,已知
长
,请你帮小东同学求出此对点
、
之间的距离;
操作探究3:随后,小王将图②中的
换成了含
角的三角板,同样是顶点重合于点
,
与
重合,已知直角边
与
长均为
,他还想求点
,
之间距离,你能求出此时点
,
之间的距离吗?
问题情境:数学课上,小王和小东两位同学利用三角板操作探究图形.
操作探究1:小王将两块全等的含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b1fe1b971b780e443a9b13621611c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
操作探究2:小东将两块全等的含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b1fe1b971b780e443a9b13621611c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
操作探究3:随后,小王将图②中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b1fe1b971b780e443a9b13621611c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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【推荐2】已知在平行四边形
中,动点
在
边上,以每秒
的速度从点
向点
运动.
平分
,求
的度数.
(2)如图2,另一动点
在
边上,以每秒
的速度从点
出发,在
之间往返运动,
,
两点同时出发,当点
到达点
时停止运动
同时
点也停止
,若
,当运动时间为 秒时,以
,
,
,
四点组成的四边形是平行四边形.
(3)如图3,连结
并延长与
的延长线交于点
,
平分
交
于
点,当
,
时,求
的长
(4)如图4,在(1)的条件下,连结
并延长与
的延长线交于点
,若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a04f6f9aaeebde80f62cd0e205e8c1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989ccdf1ea25cba198385429d9597c1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f693e870d5ccdced6e023cc4f7d621.png)
(2)如图2,另一动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5992036c739557714bc05e08a93bdd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b97f44fc917284de49992f665fa2e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)如图3,连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13af018556f0b484ed38519f2edc791c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b41d4070854edfaa24071137b314cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300c70a78c1bea9fd86f4f1b0270e069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4eccda4edcee29a5f15609e85106df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70bd4dab3c4989a919f742214ad2adc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dbb9c9cf3ea7e51e4a7e1e10d4e705f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
(4)如图4,在(1)的条件下,连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13af018556f0b484ed38519f2edc791c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c85b0ace07637d627f192db0aed0f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18eb2d78e6e294b81bff51ee5e8d4c8.png)
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解答题-证明题
|
较难
(0.4)
【推荐1】如图,△ABC内接于⊙O,弦BD⊥AC,垂足为E.点D,点F关于AC对称,连接AF并延长交⊙O于点G.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/7760dc02-3654-4984-994f-996fb739a9d6.png?resizew=200)
(1)连接OB,求证:∠ABD=∠OBC;
(2)求证:点F,点G关于BC对称;
(3)若BF=OB=2,求△ABC面积的最大值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/7760dc02-3654-4984-994f-996fb739a9d6.png?resizew=200)
(1)连接OB,求证:∠ABD=∠OBC;
(2)求证:点F,点G关于BC对称;
(3)若BF=OB=2,求△ABC面积的最大值.
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
真题
解题方法
【推荐2】 将一个直角三角形纸片ABO,放置在平面直角坐标系中,点A(
,0),点B(0,1),点O(0,0).过边OA上的动点M(点M不与点O,A重合)作MN⊥AB于点N,沿着MN折叠该纸片,得顶点A的对应点A′.设OM =m,折叠后的△A′MN与四边形OMNB重叠部分的面积为S.
![](https://img.xkw.com/dksih/QBM/2015/7/28/1573888095158272/1573888100769792/STEM/c88a00f8df544f309e1e0875a2528d48.png?resizew=548)
(Ⅰ)如图1,当点A′与顶点B重合时,求点M的坐标;
(Ⅱ)如图2,当点A′落在第二象限时,A′M与OB相交于点C,试用含m的式子表示S;
(Ⅲ)当S=
时,求点M的坐标(直接写出结果即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2015/7/28/1573888095158272/1573888100769792/STEM/c88a00f8df544f309e1e0875a2528d48.png?resizew=548)
(Ⅰ)如图1,当点A′与顶点B重合时,求点M的坐标;
(Ⅱ)如图2,当点A′落在第二象限时,A′M与OB相交于点C,试用含m的式子表示S;
(Ⅲ)当S=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd61cb5e4a7353f73833097efedb8cf.png)
您最近一年使用:0次