如图
,在平面直角坐标系中,已知
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/37e21f81-3805-440f-807d-d955baeb098f.png?resizew=148)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/d92ac881-8658-40c4-9a91-d8fe1888ba3d.png?resizew=151)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/46f09ae2-47b7-4095-bb09-defe2850fa86.png?resizew=175)
(1)如图
,若点
在第一象限,
,求证:
;
(2)如图
,若点
在第二象限,
,
,
,则
______;
(3)如图
,若点
,点
在
轴的负半轴上,满足
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e84f5c91c910aaafc5e74dbfbdf59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d429efe96d68065e7d433c996682791d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/37e21f81-3805-440f-807d-d955baeb098f.png?resizew=148)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/d92ac881-8658-40c4-9a91-d8fe1888ba3d.png?resizew=151)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/46f09ae2-47b7-4095-bb09-defe2850fa86.png?resizew=175)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13395cc6b33beadf1ccf7b65ea4b8bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499376f8d8a138deb9405b036c830eed.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa99458106237bc9f6f39c78fa5491c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071cb66995cfc6c7413a9a8e2f0aaffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b57ddc2b0e9065d020aff46cf2ae314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128eb93bb37f4f9359012ee44a8298c7.png)
(3)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2f117dc9adcb8fa7acf25bd2cbf283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85869915b4fc676a01cf9c1f96f9e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
更新时间:2022-09-10 21:15:13
|
相似题推荐
解答题-作图题
|
困难
(0.15)
【推荐1】【初步探究】
(1)如图①,在四边形
中,
,点
是边
上一点,
,
,连接
,
、判断
的形状,并说明理由;
【解决问题】
(2)如图②,在长方形
中,点
是边
上一点,在边
、
上分别作出点
、
,使得点
、
、
是一个等腰直角三角形的三个顶点,且
,
.要求:仅用圆规作图,保留作图痕迹,不写作法;
【拓展应用】
(3)如图③,在平面直角坐标系
中,已知点
,点
,点
在第一象限内,若
是等腰直角三角形,则点
的坐标是________;
(4)如图④,在平面直角坐标系
中,已知点
,点
是
轴上的动点,线段
绕着点
按逆时针方向旋转
至线段
,
,连接
、
,则
的最小值是
_________.[注:在平面直角坐标系内,
,
,则
]
(1)如图①,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ac80190d4e6bed8991344d6ee330e7.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/3cd1f3b67f266fc83774bc59ef8b90a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024dc2ccbbe321774df5d44e8785b203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c771a4feb150ad9cff8d70431c97eb17.png)
【解决问题】
(2)如图②,在长方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c56cc24e91c4e74e54e255bca35e38c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d52b615b4742c4ff20f1ecdbba2217.png)
【拓展应用】
(3)如图③,在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97be243b5cbba3b5b3f378bc1e2efbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04823a6df441d05291ee7f7ab6f37095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(4)如图④,在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd305fe9bab8e7088600a3d0ad06f2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0468237bbc0d3df77435d98b817c10c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b0fe4e7c2cd5bf82f53c22c2bb1f93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b0fe4e7c2cd5bf82f53c22c2bb1f93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7903097d9663549d86e6267da59537a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a72f71baeedbce261b35144204d00cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810b564ed2bda1ba7ebddd34ff254140.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/77eac798-3c26-4d04-b498-ce1184088ffa.png?resizew=650)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐2】在平面直角坐标系中,已知点O为坐标原点,点A(0,4).△AOB是等边三角形,点B在第一象限.
(1)如图①,求点B的坐标;
(2)点P是x轴上的一个动点,连接AP,以点A为旋转中心,把△AOP逆时针旋转,使边AO与AB重合,得△ABD.
①如图②,当点P运动到点(
,0)时,求此时点D的坐标;
②求在点P运动过程中,使△OPD的面积等于
的点P的坐标(直接写出结果即可).
(1)如图①,求点B的坐标;
(2)点P是x轴上的一个动点,连接AP,以点A为旋转中心,把△AOP逆时针旋转,使边AO与AB重合,得△ABD.
①如图②,当点P运动到点(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
②求在点P运动过程中,使△OPD的面积等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
![](https://img.xkw.com/dksih/QBM/2019/12/21/2359747104481280/2360762005274624/STEM/9d407e443c6041568f02298245ab8d91.png?resizew=493)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐1】已知:在正方形ABCD中,点E是边AB上点,点G在边AD上,连接EG,EG=DG,作EF⊥EG,交边BC于点F(图1).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/13/91e0f145-1a94-4c32-a25a-712d55d80d07.png?resizew=408)
(1)求证:AE+CF=EF;
(2)连接正方形ABCD的对角线AC,连接DF,线段AC与线段DF相交于点K(图2),探究线段AE、AD、AK之间的数量关系,直接写出你的结论;
(3)在(2)的条件下,连接线段DE与线段AC相交于点P,(图3)若AK=8
.△BEF的周长为24,求PK的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/13/91e0f145-1a94-4c32-a25a-712d55d80d07.png?resizew=408)
(1)求证:AE+CF=EF;
(2)连接正方形ABCD的对角线AC,连接DF,线段AC与线段DF相交于点K(图2),探究线段AE、AD、AK之间的数量关系,直接写出你的结论;
(3)在(2)的条件下,连接线段DE与线段AC相交于点P,(图3)若AK=8
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐2】在平面直角坐标系中,直线
分别与
轴,
轴交于
,
两点,已知
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/0200dab6-e8fc-48a9-9afa-86f75f167fa7.png?resizew=415)
(1)求直线
的解析式;
(2)如图1,点
,点
分别为
轴正半轴和
轴负半轴上的点,
且相似比为
,一个沿直线运动的点
从点
出发运动到
上一点
,再沿射线
方向运动6个单位到达点
,最后到达点
处,当
最小时,求
的最小值和点
的坐标;
(3)如图2,直线
与
轴交于点
,与线段
交于点
,在直线
上取一点
,使得
(点
在第二象限),连接
.已知点
为线段
上一动点,连接
,将
沿
翻折到△
若
落在直线
的左侧,当△
与
重叠部分(如图中的
为直角三角形时,将此
绕点
顺时针旋转
得到
△
,直线
分别与直线
、直线
交于点
、
.当
是以
为底角的等腰三角形时,请直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5cc0e44baeedd8dd7df21a85cca70d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846a783e20e7ca049678c75550465213.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/0200dab6-e8fc-48a9-9afa-86f75f167fa7.png?resizew=415)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)如图1,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3723480106d8606dd49f77b65310c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5881f1ce9b4172ca346032d0fd1e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4a45f28590fdef38e9e104c579cc66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4a45f28590fdef38e9e104c579cc66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(3)如图2,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ca43b16b2bf1da8e3ca485dea4a2ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba59105a77fcc4b7e01e80a9ca02516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3bd41676f6b69acac00a292fe134cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3bd41676f6b69acac00a292fe134cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92525893b4bc03c6ef91a11f5ba269ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c3369ca5b572ea708397d9dffd9c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3bd41676f6b69acac00a292fe134cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c3369ca5b572ea708397d9dffd9c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae5d2af0eb9f5fbc0ea4fcd48f0210d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbd96525cbe43fd0d69d0743be041ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5995c72d1e15fa51d90f27028a9a1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10968584fdfaeedd1e1d6c54e455c18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b73071db1b5fa051c88f7093fed12a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea76890f4cbf70389725121e21cfaf09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad132f07499a7b6fffdd013abe18d9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3bd41676f6b69acac00a292fe134cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34309abace77ca698cbd03976b420bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5014d8307cddc70850743f6bbb965466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7bf58e5fea1189b33cf55d86335452f.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐1】在等腰△ABC中,AC=AB,D是BC延长线上一点,E是线段AB上一点,连接DE交AC于点F.
![](https://img.xkw.com/dksih/QBM/2022/3/4/2929105670119424/2932448594591744/STEM/82be7a4f-92e2-4979-89b7-0e804b73e22c.png?resizew=774)
(1)如图1,求证:
;
(2)如图2,若∠A=90°,DF=EF,DF:AE=5:3,DF=2,求CD的长;
(3)如图3,若∠1=60°,BC=2CD=6,E在直线AB上运动,以DE为斜边向上构造直角△DTE,且∠E=30°,请直接写出CT的最小值是 .
![](https://img.xkw.com/dksih/QBM/2022/3/4/2929105670119424/2932448594591744/STEM/82be7a4f-92e2-4979-89b7-0e804b73e22c.png?resizew=774)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa7326f5329649b1ca7118d22634400.png)
(2)如图2,若∠A=90°,DF=EF,DF:AE=5:3,DF=2,求CD的长;
(3)如图3,若∠1=60°,BC=2CD=6,E在直线AB上运动,以DE为斜边向上构造直角△DTE,且∠E=30°,请直接写出CT的最小值是 .
您最近一年使用:0次
解答题-计算题
|
困难
(0.15)
【推荐2】如图,在
中,
,
,点
是射线
上的动点(不与点
,
重合),连接
,过点
在
左侧作
,使
,连接
,点
,
分别是
,
的中点,连接
,
,
.
在线段
上,且点
不是
的中点,当
,
时,
与
的位置关系是 ___________,
=___________.
(2)如图2,点
在线段
上,当
,
时,求证:
.
(3)当
,
时,直线
与直线
交于点
,若
,
,请直接写出线段
的长.
![](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/cb2cf0e95fdf1fd8a5b01d3dfd905e08.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8225b3e02f5a9f1fd5a09ada650cb78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f74a172b70f7df00b3f722a5929ad50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac762a2899a58faa0d3ab44f1281fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29be52628e5eb39f9d2c1b84d5024818.png)
(2)如图2,点
![](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/97cf714ffb3fd5917a76b191640b55fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9173b446b8ff3ec5506540f277d93a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ebab8d6fef2c395a6ca50f7d20760d.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cf714ffb3fd5917a76b191640b55fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9173b446b8ff3ec5506540f277d93a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐1】如图1,在四边形ABCD中,∠B=∠D=90°,AB=CD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/2c175956-7103-40b1-ad0a-7ec4c6777ae2.png?resizew=488)
(1)求证:四边形ABCD是矩形;
(2)如图2,若AB=BC,点E在CD延长线上,点F在CA延长线上,连接AE、EF,且满足∠AEF=2∠DAE,点G在DA延长线上,连接FG,∠G+∠AED=180°,求证:AF平分∠EFG;
(3)如图3,在(2)的条件下,过点C作CM⊥AE交EF于点M,垂足为H,延长CM至点N,MN=CM,连接FN,若FG=
,MF=
,求线段FN的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/2c175956-7103-40b1-ad0a-7ec4c6777ae2.png?resizew=488)
(1)求证:四边形ABCD是矩形;
(2)如图2,若AB=BC,点E在CD延长线上,点F在CA延长线上,连接AE、EF,且满足∠AEF=2∠DAE,点G在DA延长线上,连接FG,∠G+∠AED=180°,求证:AF平分∠EFG;
(3)如图3,在(2)的条件下,过点C作CM⊥AE交EF于点M,垂足为H,延长CM至点N,MN=CM,连接FN,若FG=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12b2ae7cc2f0d136dc538b185d5e90a.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐2】如图,在平面直角坐标系中,
为
轴正半轴上一动点,
于点
,以
为圆心,
长半径作
交直线
于
,交
轴于
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/be38afaf-b2b1-4df5-8674-018562a4c336.png?resizew=464)
(1)当
时,求
的长;
(2)在
点的整个运动过程中,
①当
时,求
点坐标;
②
交直线
于
,连接
,当
,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ec860e05c871b8992c802e10f5effb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771b610e4ddefa739a985d1e5462ce5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/be38afaf-b2b1-4df5-8674-018562a4c336.png?resizew=464)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0359d879a63262c5ef72aef5c18279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa24c28f3caf32d6fbaf9a3ca601a2d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79738fff5836b4086d8195b7b8b5956b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c826cdc7e07e84e79f3511aea5e70a.png)
您最近一年使用:0次