已知:如图1,四边形
中
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/25a992eb-42fd-4e96-bafd-1fafc6436d62.png?resizew=569)
(1)求证:四边形
是平⾏四边形;
(2)如图2,点E、F 分别在
、
上,连接
,
交于点K,
,
,
,求证:
;
(3)如图 3,在(2)的条件下,点P是
下⽅⼀点,连接
,
,
,
,G为
中点,连接
,若
,
,求
的⻓.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb34d917a073024625616e4edf22016.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/25a992eb-42fd-4e96-bafd-1fafc6436d62.png?resizew=569)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)如图2,点E、F 分别在
![](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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b40ec7ae92728fe27fa6b1ed98a92a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a58a622e2b1a239f2f96aa1501e9799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f8145e5b12aa0b0b13ce4d64c619ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eae89d65413852ba438fe2a0f53e95e.png)
(3)如图 3,在(2)的条件下,点P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a45b159532728825cb8c3ec3b2370a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de853a263e59781532f89fdab2a0acb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3137705cb4170baafa66ff46eefb7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18bbf26fadcc5aa1c44679f775768d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8a693f8bacbcd38dad3702d37e332b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3fa2fa6fa0476ba28ecd06bd1d2ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
更新时间:2023-04-03 10:49:57
|
相似题推荐
解答题-问答题
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困难
(0.15)
【推荐1】初识模型:如果两个等腰三角形顶角相等,且顶角顶点互相重合,则称此图形为“手拉手全等模型”.因为顶点相连的四边形,形象的可以看作两双手,所以通常称为“手拉手全等模型”.如图1,已知
与
都是等腰三角形,
,且
,显然
.
理解模型:如图2,在
中,
,连接AD,若
,求AD.
运用模型:如图3,已知
,AB=AC,点G为BC上一点,点D为BC中点,
于点E,
于点F,判断
的数量关系,并说明理由.
迁移模型:如图3,等边
的边长为6,D是BC的中点,E是AC边上的一点,
内部作等边三角形DEF,若
,直接写出线段CE的长.
![](https://img.xkw.com/dksih/QBM/2021/1/7/2630900019847168/2633038716231680/STEM/d191285fa87443d2a6ce46decbc6c160.png?resizew=658)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c9a77f3dcaacefe3ee0a64ddf7f73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f22970342e5d2011554a04fe44ef96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8abfdaab699cfe51bb9678110ad6aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e2da377a2bdcc06a464ba772579587.png)
理解模型:如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f010b76578240c9efbbe0bc173d24714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d7ca070c010ce6c425f4e50ffc14fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbe4845b685f9b371bdb66ed8da7bed.png)
运用模型:如图3,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dfb0a85bb6aee4a1d8fc1abad4eecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385b11357932bd24e9e16e95aacd3cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442f9cac51cc7ab4042fcc0ad7bcce51.png)
迁移模型:如图3,等边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dfa3e211225ab6051c1ea55f0442b0a.png)
![](https://img.xkw.com/dksih/QBM/2021/1/7/2630900019847168/2633038716231680/STEM/d191285fa87443d2a6ce46decbc6c160.png?resizew=658)
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【推荐2】在平面直角坐标系中,点O为坐标原点,抛物线y=ax2+bx﹣3交x轴负半轴于点A,交x轴正半轴于点B,交y轴于点C,点D(4,3)在抛物线上,连接AC,AD,tan∠BAC=
.
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913335432445952/2913623264002048/STEM/f625e48d-4844-4668-9e72-2b685d43c44f.png?resizew=438)
(1)如图1,求抛物线的解析式;
(2)如图2,点P在抛物线上,点P在第四象限,点P的横坐标为t,过点P作y轴的平行线交AD于点E,设线段PE的长为d,求d与t之间的函数关系式,不要求写出自变量t的取值范围;
(3)如图3,在(2)的条件下,点F在OB上,AF=OB,PE交线段BF于点G,过点F作AE的垂线,点H为垂足,点Q在射线FH上,连接QE,EF,EO,FP,若∠AEO=∠FEO,∠QEF+∠EAC=180°,求点P与点Q的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913335432445952/2913623264002048/STEM/f625e48d-4844-4668-9e72-2b685d43c44f.png?resizew=438)
(1)如图1,求抛物线的解析式;
(2)如图2,点P在抛物线上,点P在第四象限,点P的横坐标为t,过点P作y轴的平行线交AD于点E,设线段PE的长为d,求d与t之间的函数关系式,不要求写出自变量t的取值范围;
(3)如图3,在(2)的条件下,点F在OB上,AF=OB,PE交线段BF于点G,过点F作AE的垂线,点H为垂足,点Q在射线FH上,连接QE,EF,EO,FP,若∠AEO=∠FEO,∠QEF+∠EAC=180°,求点P与点Q的距离.
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名校
【推荐1】如图所示,在平面直角坐标系中,
为坐标原点,点
坐标为
,
过点
.与
轴、
轴分别交于
、
两点,
为弧
的中点.连接
并延长交
轴于点
,连接
并延长,使得
,连接
.
(1)求点
的坐标,连接
、
,四边形
的形状是 ;
(2)点
从
点出发以每秒2个长度单位的速度沿折线段
运动,同时点
也从
点出发以相同的速度沿射线
运动,当点
到达
点两点同时停止,设运动时间为
.
的面积为
,求
与
之间的函数关系式,并写出自变量的取值范围.
(3)在(2)的条件下,若点
在线段
上运动且
,直接写出直线
与
相交所得的弦长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371d081ba06ee2aa378cf53b74b2cc72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe43993d03d9b144070e9e01d881287a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/5/74f5be4b-0370-41ec-a584-43ea5aa765a4.png?resizew=401)
(1)求点
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0cc6293cfedec30b124ece908c4c438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdc02f00cf00a6dfd88b53a90f1f7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在(2)的条件下,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39228009fdb973a78cdeb934967c8a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
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解答题-证明题
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困难
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【推荐2】如图1,四边形
内接于
,对角线
,
交于点
,连接
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5948e267eee8d9dce84a21c7364f1425.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/21d3a373-b189-4009-b1af-b15a52163617.png?resizew=446)
(1)求证:
;
(2)如图2,若
,求证:
;
(3)如图3,在(2)的条件下,延长
交
于点
,若
,
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5948e267eee8d9dce84a21c7364f1425.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/21d3a373-b189-4009-b1af-b15a52163617.png?resizew=446)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc1f76257275ab4b04f9bc913535670.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9204fa555e4c2945323c6c49116ccfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
(3)如图3,在(2)的条件下,延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55976b8965773218eead4b3ec11ad4a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b0b68a671bb4d5ff1d5c0cbcf86df55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
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【推荐3】如果一个三角形的一个内角等于另一个内角的2倍,我们称这样的三角形为倍角三角形,并称这两个角的公共边为底边.
(1)如图1,在
中.按如下做法:
①作
的中垂线
:
②作
的角平分线与中垂线
交于点
;
③连接
并延长与
交于点
,得到
.
若按上述作法,得到的
是倍角三角形.则
与
的等量关系___________;
(2)如图2,在矩形
中,以
为底边做一个倍角三角形顶点
恰好落在
边上.若
,
.求
的长度.
(3)如图3,现有一块梯形板材
,
,
,
,
.工人师傅想用这块板材裁出一个
型部件,使得点
在梯形
的边
上,
为以
为底边且
的倍角三角形.是否存在满足要求的
?若存在,请确定点
位置(求出
的长);若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/11/45e3851f-4f15-44ec-aa5e-043d777c9c89.png?resizew=415)
(1)如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
①作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
③连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
若按上述作法,得到的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404fc19da3e4da41e9147e9f0ca64957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df0ba997bb8f5b2f2a2b677391ebc22.png)
(2)如图2,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a0367c3fe3c5c5dfefec87f641bbde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
(3)如图3,现有一块梯形板材
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57c6b0a6cb307c4c02f503831862f7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c66681d6c0166182c11ed7a9019026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
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解答题-作图题
|
困难
(0.15)
【推荐1】如图,已知,正方形
的边长为4,点
是
边上一点,点P,Q分别在边
和
上,且
.
(1)如图1,若点E是
中点.
①当点P和点A重合时,画出图形,求
的长,并说明理由.
②设
,
.请探究m,n之间的关系.
(2)如图2,
,连接
,若
,
,求
的长.
(3)如图3,若点E是
中点,连接
.请直接写出所有情形下
的最小值.
![](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/9d78abbad68bbbf12af10cd40ef4c353.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/5e823a154560fd874ad2181582df3543.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/9/52f02f14-cd90-45a4-b599-dbdf089e7d6b.png?resizew=379)
(1)如图1,若点E是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
①当点P和点A重合时,画出图形,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbd4869dbffe2c1d53ab6b2494de547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfc46fe6cffd530edab0c2c243bffb0.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561335d2b27ca584ef2e3db326d55bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff708b7bffcf00c942cc6cd0059bf8f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff63fd16efe9dac36da5eaa3fc0203e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4739c10d92514ed206bd35ca8d45f4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
(3)如图3,若点E是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bef2f0c6dd14a7d682b2a5fd5e29cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5d20f6201b40aa362b570b696583b6.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,抛物线
与x轴交于A、B两点,与y轴交于C点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/390b56e5-502c-4041-bfd7-a7d59561434f.png?resizew=203)
(1)求抛物线的解析式;
(2)在第二象限内的抛物线上确定一点P,使四边形
的面积最大,求出点P的坐标;
(3)在(2)的结论下,点M为x轴上一动点,抛物线上是否存在一点Q,使点P、B、M、Q为顶点的四边形是平行四边形,若存在,请直接写出Q点的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3bb9c37e2352661329112600f10d06.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/390b56e5-502c-4041-bfd7-a7d59561434f.png?resizew=203)
(1)求抛物线的解析式;
(2)在第二象限内的抛物线上确定一点P,使四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab248f590a69e59de4576a7a0ebbf87d.png)
(3)在(2)的结论下,点M为x轴上一动点,抛物线上是否存在一点Q,使点P、B、M、Q为顶点的四边形是平行四边形,若存在,请直接写出Q点的坐标;若不存在,请说明理由.
您最近一年使用:0次
解答题-应用题
|
困难
(0.15)
名校
【推荐1】如图①所示,▱ABCD是某公园的平面示意图,A、B、C、D分别是该公园的四个入口,两条主干道AC、BD交于点O,经测量AB=0.5km,AC=1.2km,BD=1km,请你帮助公园的管理人员解决以下问题:
(1)公园的面积为 km2;
(2)如图②,公园管理人员在参观了武汉东湖绿道后,为提升游客游览的体验感,准备修建三条绿道AN、MN、CM,其中点M在OB上,点N在OD上,且BM=ON(点M与点O、B不重合),并计划在△AON与△COM两块绿地所在区域种植郁金香,求种植郁金香区域的面积;
(3)若修建(2)中的绿道每千米费用为10万元,请你计算该公园修建这三条绿道投入资金的最小值.
(1)公园的面积为 km2;
(2)如图②,公园管理人员在参观了武汉东湖绿道后,为提升游客游览的体验感,准备修建三条绿道AN、MN、CM,其中点M在OB上,点N在OD上,且BM=ON(点M与点O、B不重合),并计划在△AON与△COM两块绿地所在区域种植郁金香,求种植郁金香区域的面积;
(3)若修建(2)中的绿道每千米费用为10万元,请你计算该公园修建这三条绿道投入资金的最小值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/3b002cdd-1f50-4fd3-981a-c0979375fe2d.png?resizew=541)
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
交
轴的负半轴于点
,交
轴的正半轴于点
,点
为线段
的中点,
.交
轴于点
,
的值;
(2)如图2,点
在第一象限的直线
上,
,求点
的坐标;
(3)如图3,在(2)的条件下,点
在线段
上,点
在线段
上,
,连接
,作
于
,交
于
,若
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f70e1f599642d4cb2b0334ab4db128.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b671cdde6baf9ab577330696ca8ff121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)如图2,点
![](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/fd32d2db65c6c30f0981cf6b21ab94bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)如图3,在(2)的条件下,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bddb490ab63db866eb96ce701539f5ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c9292748fda9218843b5a78798512a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba72ff0924c3164035d476b8bf153933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次