如图,在
中,
,
是线段
延长线上一点,连接
,过点
作
于
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/f88e97d0-20a0-4e67-8493-affaa05699db.png?resizew=176)
(1)求证:
;
(2)将射线
绕点
顺时针旋转
后,所得的射线与线段
的延长线交于点
,连接
.
①依题意补全图形;
②用等式表示线段
之间的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378dadc3dec7d564001a1be3cf345726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/f88e97d0-20a0-4e67-8493-affaa05699db.png?resizew=176)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500fb7ff2af329d06ef69b5dc248ab92.png)
(2)将射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.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/4eedae8d316c76e3d0b451256de03fb9.png)
①依题意补全图形;
②用等式表示线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9583e3a891989b6dbf5ff27c77e61c.png)
更新时间:2022-11-14 16:04:07
|
相似题推荐
解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,在
中,
,
是斜边
上的高,角平分线
交
于点
.求证:
是等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed8f7d3d7043d4b1eb98fc5c4e2fcd3.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/2/c5e4c57c-a602-4a59-bc44-86ea8d0ec483.png?resizew=204)
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【推荐2】综合与实践:
问题情境:如图1.在△ABC中,∠ACB=90°,CA=CB,点D是AB边上的一个动点(不与点A、B重合)连接CD,过点C作CE⊥CD,且CE=CD,连接BE.
(1)判断△ACD与△BCE是否全等,并说明理由;
![](https://img.xkw.com/dksih/QBM/2020/8/18/2530353768243200/2531440468221952/STEM/64d362adf14c40e8a6653efc1764eefb.png?resizew=529)
操作探究:
(2)试猜想线段AD与BE的关系,并说明理由;
拓展延伸:
(3)请借助备用图探究下列问题,并将结论写在横线上:
①若点D在线段AB上移动,其余条件不变,表示线段AB,BD,BE数量关系的等式为 ;
②若点D在线段AB延长线上移动,点E在直线AB上方,其余条件不变,此时,表示线段AB,BD,BE数量关系的等式为 ;
③若点D在线段BA延长线上移动,点E在直线AB下方,其余条件不变,此时,表示线段AB,BD,BE数量关系的等式为 .
问题情境:如图1.在△ABC中,∠ACB=90°,CA=CB,点D是AB边上的一个动点(不与点A、B重合)连接CD,过点C作CE⊥CD,且CE=CD,连接BE.
(1)判断△ACD与△BCE是否全等,并说明理由;
![](https://img.xkw.com/dksih/QBM/2020/8/18/2530353768243200/2531440468221952/STEM/64d362adf14c40e8a6653efc1764eefb.png?resizew=529)
操作探究:
(2)试猜想线段AD与BE的关系,并说明理由;
拓展延伸:
(3)请借助备用图探究下列问题,并将结论写在横线上:
①若点D在线段AB上移动,其余条件不变,表示线段AB,BD,BE数量关系的等式为 ;
②若点D在线段AB延长线上移动,点E在直线AB上方,其余条件不变,此时,表示线段AB,BD,BE数量关系的等式为 ;
③若点D在线段BA延长线上移动,点E在直线AB下方,其余条件不变,此时,表示线段AB,BD,BE数量关系的等式为 .
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解答题-作图题
|
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名校
【推荐1】如图,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/f14485c8-c1b7-4893-bed2-ad445bb38b25.png?resizew=191)
(1)在
上方求作一点
,使得
,且
,连接
(要求:尺规作图,保留作图痕迹,不写作法).
(2)在(1)的条件下,连接
、
、
,若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46354bb0d4f2e0b785d137c8c543d1d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/f14485c8-c1b7-4893-bed2-ad445bb38b25.png?resizew=191)
(1)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59f9a4fe996045c2e1adb8caa06c1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2ab6940dca62be1f3b2b5f8531990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)在(1)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3acee288e75061ac72203b09fce29904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cd9d0d73549e2944578f3513631ce5.png)
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解答题-证明题
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【推荐2】在正方形ABCD中,点F是边AB上一点,连接DF,点E为DF中点.连接BE、CE、AE.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/14/f0c2f741-58f6-4233-a123-d9d798a2c9a6.png?resizew=138)
(1)求证:∠DAE=∠ADE;
(2)求证:△AEB≌△DEC;
(3)当EB=BC时,求∠AFD的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/14/f0c2f741-58f6-4233-a123-d9d798a2c9a6.png?resizew=138)
(1)求证:∠DAE=∠ADE;
(2)求证:△AEB≌△DEC;
(3)当EB=BC时,求∠AFD的度数.
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解答题-证明题
|
适中
(0.65)
【推荐1】在
中,
,
,点
为直线
上一动点,连接
,将线段
绕点
逆时针旋转
,得到线段
,连接
.
(1)如图1,当
时,请直接写出线段
和线段
之间的数量关系;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/27a73fbb-fa58-4794-9cf0-daecff547a59.png?resizew=127)
(2)如图2,当
时,其它条件不变,试判断线段
、
、
的数量关系,并证明;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c771a4feb150ad9cff8d70431c97eb17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a5594708b3d94026c639aff4446b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524d4a0c1990fdca997bf894cfcd2cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cf714ffb3fd5917a76b191640b55fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/27a73fbb-fa58-4794-9cf0-daecff547a59.png?resizew=127)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac762a2899a58faa0d3ab44f1281fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/96d044bf-e875-4198-8d1c-be8caed037ca.png?resizew=131)
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解答题-计算题
|
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(0.65)
名校
【推荐2】如图,
中,
,
,
.点P是射线
上一点(不与点B重合),
为
的垂直平分线,交
于点F,交射线
于点E,连接
.
(1)求
的度数;
(2)当点P在线段BC上时,设
,
的面积为y,求y关于x的函数解析式,并写出函数的定义域;
(3)如果
,请直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83cb6327dcbc8a998e6586bcfa7a3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d743aa51d044c6c9426dfe75e0c0023a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/cd1edcee-669e-4946-a304-c677044aa485.png?resizew=159)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
(2)当点P在线段BC上时,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bc55510792f8bd30e1c0686609fe3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729684f958ad60b8e905fe1e1da53c03.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc85ee32ba9e6407546cf1561d8610e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
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解答题-问答题
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【推荐1】如图,点
,点
,
,
分别是
,
的中点,连接
.将
绕点
逆时针方向旋转
,得到
.双曲线
过线段
的中点
.
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492428218236928/2493958734225408/STEM/dc36086147bd4c78addffa9cc851bb51.png?resizew=160)
(1)
__________.
(2)点
的横坐标为__________.
(3)求双曲线的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c84818cfbd9a885081cb4e3294eabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c77a42750684cb6157c2c7fb9422a3.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/e2c3d2cba96f6f03520c0b3f6e4da03e.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c021993da445858448d368df42554c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492428218236928/2493958734225408/STEM/dc36086147bd4c78addffa9cc851bb51.png?resizew=160)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bc69e886c7afedf1c9233e9a2a6870.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)求双曲线的解析式.
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【推荐2】如图,已知点P在反比例函数
上,过点P分别作PA⊥x轴,垂足为点A,PB⊥y轴,垂足为点B,连接AB,将△PAB绕点A顺时针旋转90°到△QAC,交反比例函数图像于点D.
![](https://img.xkw.com/dksih/QBM/2022/5/3/2971527051296768/2971730607398912/STEM/a9b99553-f138-46de-9bba-7014cdda257d.jpg?resizew=251)
(1)若点P(2,4),求
;
(2)若CD=1,
,求反比例函数解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://img.xkw.com/dksih/QBM/2022/5/3/2971527051296768/2971730607398912/STEM/a9b99553-f138-46de-9bba-7014cdda257d.jpg?resizew=251)
(1)若点P(2,4),求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05af8a8811b89cdf0798c86201d7de07.png)
(2)若CD=1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f9a1801e06d65d916cbc8130d54981.png)
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