1 . 如图,在矩形纸片
中,点E在
边上,沿直线
折叠该矩形纸片使点B落在
边上的点F处,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/a3429db0-931a-4c0c-b170-1d058c89ac99.png?resizew=134)
(1)画出折痕
;(尺规作图,保留作图痕迹)
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/a3429db0-931a-4c0c-b170-1d058c89ac99.png?resizew=134)
(1)画出折痕
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9798901980efaabd63c9eaf5d7f911ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
您最近一年使用:0次
2 . 如图,在
中,
,
,
,将
沿过A点的直线折叠,使点C落在
边上的点D处,折痕与
交于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/e0ecd34a-ca6b-43c3-be20-dc030d7386ac.png?resizew=74)
(1)试用尺规作图作出折痕
,并描出点D的位置;(要求:尺规作图,保留作图痕迹,不写作法)
(2)连接
,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5a152f235942d11c74ef518fca7bba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6d6597d07c8e98ca0c21d2527942ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/e0ecd34a-ca6b-43c3-be20-dc030d7386ac.png?resizew=74)
(1)试用尺规作图作出折痕
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
3 . 在矩形
中,
,
,
.P为
上一点,将
沿直线
翻折至
的位置(点B落在点E处).
(1)如图,当点E落在边
上时,利用尺规作图,在图中作出
(不写作法,保留作图痕迹).
(2)在(1)的条件下,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/529188246973b6851b114466a238fc0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ff2e2780c282e8ab8e5e88681e1efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31919a6291edb861cfa0edd663b41c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099dd87a526391f830ac2a11e7d7ad56.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/13ce59ac-28d6-4327-b7bb-a00239b5162e.png?resizew=136)
(1)如图,当点E落在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099dd87a526391f830ac2a11e7d7ad56.png)
(2)在(1)的条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
您最近一年使用:0次
4 . 在矩形
中,
,
(1)若点
是线段
上的一动点,将
沿直线
翻折,
点的对应点为
点,
①如图1,若点
恰好落在线段
上,求线段
的长;
②连接
,若
是以
为腰的等腰三角形,求线段
的长;
(2)若点
在射线
上,
沿直线
翻折,
点的对应点为
点落在线段
的延长线上,请作出
(尺规作图,要求保留作图痕迹,不必写作法),并直接写出线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41cd7b4dd31fc8c85f9ffeb654c82b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/7/bfe1cef8-ec8d-4575-b75d-916f1d586e31.png?resizew=527)
(1)若点
![](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/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
①如图1,若点
![](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/1fc56c77464a17a1e97b568762a3e2c6.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c8527c6c71434213ebf8a9683062ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
(2)若点
![](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/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
名校
5 . 如图,在
中,
,
,
,将
沿过B点的直线折叠,使点C落在
边上的点D处,折痕与
交于点E.
(1)试用尺规作图作出折痕
;(要求:保留作图痕迹,不写作法.)
(2)连接
,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafddfd80f69337909f6eac0f0dbfd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432043f79e122f291c47453013042704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/25/be794fd1-d9c4-4c01-baf9-4edb480b4bc0.png?resizew=171)
(1)试用尺规作图作出折痕
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
名校
6 . 如图将长方形纸片ABCD折叠,使得点D落在AB边上的点P处,折痕经过点C,与边AD交于点Q.
(1)尺规作图:求作点P、Q(不写作法,保留作图痕迹):
(2)若
,
,求AQ的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/16/2e85b085-751b-4aa0-b838-486bd6c95578.png?resizew=146)
(1)尺规作图:求作点P、Q(不写作法,保留作图痕迹):
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ff2e2780c282e8ab8e5e88681e1efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c72eaa8cd96353848139df40a31b82.png)
您最近一年使用:0次
7 . 如图,在矩形
中,
,
,P是
边上一点,将
沿着直线
折叠,得到
.
(1)尺规作图:在
边上作出一点P,使P,E,C三点在一直线上(不写作法,保留作图痕迹),则此时
的长为__________;
(2)尺规作图:在
边上作出一点P,使
平分
(不写作法,保留作图痕迹),此时
的面积为__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ebb33adb2310a6e03918761e68204a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48775f13f05443e6f6d30ae26e669f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/9/cc778586-a3c1-454d-a272-7134f78517aa.png?resizew=374)
(1)尺规作图:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
(2)尺规作图:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404fc19da3e4da41e9147e9f0ca64957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
您最近一年使用:0次
8 . 在四边形
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/63344ba4-e975-4dd3-9a75-652dee2370e2.png?resizew=229)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/81c313eb-6792-49fb-8d9b-5b438507e647.png?resizew=130)
(1)P为
上一点,将
沿直线
翻折至
的位置(点B落在点E处).
①如图1,当点B落在边
上时,利用尺规作图,在图1中作出满足条件的图形(即
的位置,不写作法,保留作图痕迹),并直接写出此时
______;
②如图2,PB与CD相交于点F,AB与CD相交于点G,且
,求BP的长;
(2)如图3,已知点Q为射线BA上的一个动点,将
沿
翻折,点B恰好落在直线
上的点B′处,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb21a0c670cedddba1c0db6c42a1bd3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/63344ba4-e975-4dd3-9a75-652dee2370e2.png?resizew=229)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/81c313eb-6792-49fb-8d9b-5b438507e647.png?resizew=130)
(1)P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099dd87a526391f830ac2a11e7d7ad56.png)
①如图1,当点B落在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099dd87a526391f830ac2a11e7d7ad56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc4a940a9ba9b81c81e3ba4fdd53f31.png)
②如图2,PB与CD相交于点F,AB与CD相交于点G,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9424f455661923b021d86e22cea401.png)
(2)如图3,已知点Q为射线BA上的一个动点,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92905d020164683947943040ec19c530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
您最近一年使用:0次
2022-11-06更新
|
284次组卷
|
2卷引用:江苏省淮安市涟水县2023-2024学年八年级上学期期中数学试题
9 . 如图将长方形纸片
折叠,使得点D落在
边上的点P处,折痕经过点C,与边
交于点Q.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/77095251-ca41-4b4a-8601-0e463fd57891.png?resizew=164)
(1)尺规作图:求作点P、Q(不写作法,保留作图痕迹);
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/77095251-ca41-4b4a-8601-0e463fd57891.png?resizew=164)
(1)尺规作图:求作点P、Q(不写作法,保留作图痕迹);
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e096f87473d0b6b6d531ba22e5a7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a898fdda74f742419ffca96ca382fa6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
您最近一年使用:0次
2023-01-14更新
|
224次组卷
|
4卷引用:专题18.13 勾股定理(折叠问题)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(沪科版)
(已下线)专题18.13 勾股定理(折叠问题)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(沪科版)(已下线)专题17.13 勾股定理(折叠问题)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(人教版)江苏省镇江市市区2021-2022学年八年级上学期期末数学试题江苏省盐城市大丰区初级中学第四共同体2022-2023学年上学期八年级数学第二次阶段检测试试题
10 . 如图,在长方形
中,
,
,将长方形
沿直线
折叠(点
是折痕和边
的交点),使点
落在
上的
处.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/79046be3-8f21-4ef7-8c23-9330baf981c0.png?resizew=148)
(1)请你利用尺规作图确定点
和点
.(保留作图痕迹,不写做法)
(2)将图形补充完整,
______.
![](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/f26ad70d2b3aac8604834d57dfc59bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/79046be3-8f21-4ef7-8c23-9330baf981c0.png?resizew=148)
(1)请你利用尺规作图确定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)将图形补充完整,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a71a9d21f77e9535de152bb33f802bb.png)
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