如图:四边形
内接于
,
为
的直径,点
是
的中点,过点
的直线分别交
、
的延长线于点
、
,且
.
为
的切线;
(2)若
,
,求
的面积.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b758913f0b039bba68f657380e1f67.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/03902478df1a55bc99703210bccab910.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/a463e492676ea473d0108eb25a90c349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaead91b4b6febfcdd6f995d81e550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a56ec8f56fbee8613316daf744463164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4ce3f962c91f0d3c7b998b5fbb37b5.png)
更新时间:2024-05-05 17:28:52
|
相似题推荐
解答题-作图题
|
适中
(0.65)
名校
【推荐1】如图,在△ABC中,∠ACB=90°.
(1)作出经过点B,圆心O在斜边AB上且与边AC相切于点E的⊙O(尺规作图,保留痕迹,不写作法)
(2)设(1)中所作的⊙O与边AB交于异于点B的另外一点D,若⊙O的直径为5,BC=4;求DE的长.
(1)作出经过点B,圆心O在斜边AB上且与边AC相切于点E的⊙O(尺规作图,保留痕迹,不写作法)
(2)设(1)中所作的⊙O与边AB交于异于点B的另外一点D,若⊙O的直径为5,BC=4;求DE的长.
![](https://img.xkw.com/dksih/QBM/2020/9/13/2549036063719424/2550379951374336/STEM/d5222356053b4eeaa7fd97bda0311574.png?resizew=150)
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解答题-证明题
|
适中
(0.65)
【推荐2】
是
的平分线上一点,
,
,
、
是垂足,连接
交
于点
.
(
)若
,求证:
是等边三角形.
(
)若
,
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28471c57aeae82b28310826851e2efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f91df53f41b53bec267a9af714c6c17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7c422a19b68b8b4cd484d22897e3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://img.xkw.com/dksih/QBM/2017/12/27/1847543978598400/1852491652907008/STEM/7bcdf257ea5d43b9ba545216b745b67a.png?resizew=181)
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解答题-证明题
|
适中
(0.65)
【推荐1】如图,⊙O经过点C,AB是⊙O的直径,D是AB延长线上一点,AE⊥DC,交DC的延长线于点E,且AC平分∠EAB.
求证:DE是⊙O的切线;
求证:DE是⊙O的切线;
![](https://img.xkw.com/dksih/QBM/2018/3/30/1913323750285312/1916171726225408/STEM/f621aee10a1848a9a3acc73d987f682c.png?resizew=204)
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解答题-证明题
|
适中
(0.65)
【推荐2】如图,在
中,
,以
的中点
为圆心,
为直径的圆交
于点
,连接
,
是
的中点,连接
并延长,交
点的延长线于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/3166e41d-0c53-43a9-aa92-643f7ce03527.png?resizew=186)
(1)求证:
是
的切线;
(2)求证:
;
(3)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/3166e41d-0c53-43a9-aa92-643f7ce03527.png?resizew=186)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab17635a999236e8d2e35017a208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf6605f67e99d07786c53aaebcb8b5c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a785805058fad91bdd4526f3f28da42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解答题-问答题
|
适中
(0.65)
【推荐1】如图是由边长为1的正方形构成的网格,每一个小正方形的顶点叫做格点,线段AB的端点在格点上,仅用无刻度直尺在给定的网格中画图,画图过程用虚线表示,画图结果用实线表示,按步骤完成下列问题:
![](https://img.xkw.com/dksih/QBM/2022/3/19/2939588012843008/2963867212849152/STEM/17914e24-6a27-46bf-b782-1dd66cb6d558.png?resizew=336)
(1)将线段AB绕A点顺时针旋转90°得到线段AC,连接BC;
(2)在BC上取一点D,使BD=
CD;
(3)在AB上取点E,若∠AEC=∠BED,请直接写出tan∠BCE=_________.
![](https://img.xkw.com/dksih/QBM/2022/3/19/2939588012843008/2963867212849152/STEM/17914e24-6a27-46bf-b782-1dd66cb6d558.png?resizew=336)
(1)将线段AB绕A点顺时针旋转90°得到线段AC,连接BC;
(2)在BC上取一点D,使BD=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(3)在AB上取点E,若∠AEC=∠BED,请直接写出tan∠BCE=_________.
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解答题-问答题
|
适中
(0.65)
【推荐2】在平面直角坐标系
中,抛物线
与
轴的负半轴交于点
、与
轴交于点
,且
.
(1)求
的值;
(2)如果点
是抛物线上一点,联结
交
轴正半轴于点
,
,求
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/293f41b6049cd2df4a834c8ea5f9e8d3.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/04725e51b4870658f74de79403e3898f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)如果点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf6d4b3a595b822906b2ea7c5f80fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解答题-证明题
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适中
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名校
【推荐1】如图,
是
的外接圆,
是
的直径,
是
上一点,连接
,过点D的切线与
的延长线交于点E.
;
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18814c96e2ce8ceaa3a9a78e4f4fb64a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e983038e0e73ad399ea636dfa03243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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解答题-作图题
|
适中
(0.65)
名校
【推荐2】如图,已知
中,
.
(1)过点B作
边的垂线
,交
于点D(用尺规作图法,保留作图痕迹,不写作法);
(2)在(1)条件下,若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddf629bfb2d7b9daea6f2c1553360af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/8/d71a768a-d6c6-462f-9203-171b84b59c3d.png?resizew=178)
(1)过点B作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)在(1)条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2058d7ae4f66c7168255b20906c2df1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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