在平面直角坐标系中,已知点
,
,将线段
绕点A逆时针旋转
得到
,
的长;
(2)连接B、
,求
的面积;
(3)在x轴上找一点C,使得
是等腰三角形,求出满足条件的点C的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7706e60c7eb1d50efa10c291d7b936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cab5c6534e43f0ecc54a311a16df80e.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/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)连接B、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19343455668abab3ca3b05aa2cf616c2.png)
(3)在x轴上找一点C,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2023-03-21 12:22:47
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相似题推荐
解答题-证明题
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名校
【推荐1】如图,在
ABCD中,对角线AC,BD交于点O,过点B作BE⊥CD于点E,延长CD到点F,使DF=CE,连接AF.
(2)连接OF,若AB=6,DE=2,∠ADF=45°,求OF的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a5328919a7cec382c2e91c9c528fc1.png)
(2)连接OF,若AB=6,DE=2,∠ADF=45°,求OF的长度.
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【推荐2】如图,A,B分别是x轴上位于原点左右两侧的两点,点
在第一象限内,直线
交y轴于点
,直线
交y轴于点D,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/3dabd07c-9d6d-4b29-8e19-77711b922aee.jpg?resizew=188)
(1)求
;
(2)求点A的坐标及p的值;
(3)若
,求直线
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a36a1c8b4436b5d7521bfda5c9f519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eaca284f99b4f21bdfb812120f6aaaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179d1cd91f2d105144e8edd5c075aca8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/3dabd07c-9d6d-4b29-8e19-77711b922aee.jpg?resizew=188)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ba7166cb513917aa653af50c85c14c.png)
(2)求点A的坐标及p的值;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d52b78cf4d757fce11019794f1027ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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解答题-作图题
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名校
【推荐1】如图所示,在平面直角坐标系中,已知A(1,1)、B(2,0)、C(4,3).
![](https://img.xkw.com/dksih/QBM/2022/1/29/2904700105146368/2930350162599936/STEM/804cd0f8-638d-4b2d-a36e-9e3964085dc8.png?resizew=314)
(1)在平面直角坐标系中画出△ABC,并作出关于y轴对称的△A1B1C1;
(2)已知P为y轴上一点,若△ACP的周长最小,则点P的坐标为 ,周长为 .
![](https://img.xkw.com/dksih/QBM/2022/1/29/2904700105146368/2930350162599936/STEM/804cd0f8-638d-4b2d-a36e-9e3964085dc8.png?resizew=314)
(1)在平面直角坐标系中画出△ABC,并作出关于y轴对称的△A1B1C1;
(2)已知P为y轴上一点,若△ACP的周长最小,则点P的坐标为 ,周长为 .
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【推荐2】反比例函数
的图象经过线段
的端点
,
为原点,作
轴于点
,点
的坐标为
,
,将线段
沿
轴正方向平移到线段
的位置,反比例函数
的图象恰好经过
的中点
.
![](https://img.xkw.com/dksih/QBM/2023/5/25/3245594170564608/3245886738980864/STEM/a98378bf75b946d9b6d7130c56713331.png?resizew=185)
(1)求
的值和直线
的函数表达式;
(2)若直线
与
轴交于点
、与
轴交于点
,请你探索线段
与线段
的大小关系,写出你的结论并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24624dffd30b66a5e4de57362b32b2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b2ab55487cf5e7b89926a6406c9ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2023/5/25/3245594170564608/3245886738980864/STEM/a98378bf75b946d9b6d7130c56713331.png?resizew=185)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
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【推荐1】定义:有且仅有一组对角相等的凸四边形叫做“准平行四边形”.例如:凸四边形ABCD中,若∠A=∠C,∠B≠∠D,则称四边形ABCD为准平行四边形
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896369390690304/2952986230358016/STEM/791aa892-71cd-4a61-aa9f-8153ef95e45c.png?resizew=444)
(1)如图①,半圆O的直径为BC,OA ⊥OB ,点E在过点A的切线上,且BE=BA,点D是
上的动点(不在点A、C上),求证:四边形AEBD为准平行四边形.
(2)如图②,准平行四边形ABCD内接于⊙O,∠B≠ ∠D,若⊙O的半径为5,AB=AD,则①准平行四边形ABCD的面积S是线段AC的长x的函数吗?如果是,求出函数解析式;如果不是,请说明理由;
②准平行四边形ABCD的面积S有最大值吗?如果有求出最大值,如果没有,说明理由.
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896369390690304/2952986230358016/STEM/791aa892-71cd-4a61-aa9f-8153ef95e45c.png?resizew=444)
(1)如图①,半圆O的直径为BC,OA ⊥OB ,点E在过点A的切线上,且BE=BA,点D是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0a98828cab1d9bd9184aa53750bd6d.png)
(2)如图②,准平行四边形ABCD内接于⊙O,∠B≠ ∠D,若⊙O的半径为5,AB=AD,则①准平行四边形ABCD的面积S是线段AC的长x的函数吗?如果是,求出函数解析式;如果不是,请说明理由;
②准平行四边形ABCD的面积S有最大值吗?如果有求出最大值,如果没有,说明理由.
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【推荐2】综合与实践
在菱形
中,
,对角线
,
相交于点
,点
是
上的动点,将
绕点
顺时针旋转
得到
,连接
,
.
(1)如图1,当点
在线段
上时,
与
之间的数量关系为___________.
(2)如图2,当点
在线段
上时,(1)中的结论还成立吗?请说明理由.
探究发现:
(3)当
是等腰直角三角形时,直接写出
的度数.
在菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
(1)如图1,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c36ff76f9f1ee12db562cde7a58b8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90026b96116424a245b335b1adb886b.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
探究发现:
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cd9d0d73549e2944578f3513631ce5.png)
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名校
【推荐1】已知矩形
中,
,点
在边
上,且
,点
在边
或
上,连接
、
、
,设
.
(1)如图1,当
时,求
的值;
(2)如图2,当
时,如果
为等腰三角形,求
的面积;
(3)直接写出使得
为等腰三角形的点
最多有几个?并指出使得点
个数最多时
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3699139ef137f5053d121cd22a653ebe.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2633a6f46b0847158eebb05c743561aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/13/67e3d6c8-fbc1-4163-97b8-80f2b94b8790.png?resizew=541)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3755c7468af34ffc8400731f542c041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224d30ca84f1aeeeda7a718e751a4925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2b58424e893df4e01c912f87e09095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2b58424e893df4e01c912f87e09095.png)
(3)直接写出使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2b58424e893df4e01c912f87e09095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐2】已知△ABC中AB=AC=10 DE垂直平分AB,交AC于E.已知△BEC的周长是16,求△ABC的周长.
![](https://img.xkw.com/dksih/QBM/2019/6/14/2225508734550016/2225588333715456/STEM/bed2b401eb1f45c69fe8b5a249b580bc.png?resizew=119)
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