如图,在
的正方形网格中,每一个小正方形的边长为
,小正方形的顶点为格点,已知
,
,
,
为格点.
(1)试说明
为等腰三角形.
(2)请你仅用无刻度的直尺,在线段
上求作一点
,使得
,并简单说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89900589ac1333e2a87723c2c4469a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/9d9f64ec-9079-4379-869d-69c069fb01ec.png?resizew=122)
(1)试说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)请你仅用无刻度的直尺,在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650abc501b8d26ec0556b168e9ad20df.png)
更新时间:2023-12-10 19:10:21
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐2】如图所示,已知在
中,
,
为
中点.点
在线段
上以
的速度由
点向
点运动,点
在线段
上以
的速度由
点向
点运动,
、
两点同时出发.
(1)设运动时间为
,则
的距离可表示为 ;
的距离可表为 .
(2)在点
、
的运动过程中,存在某一时刻,使得
吗?若存在,求出此时
的值;若不存在,请说明理由.
(3)若点
、
均以原来的速度按逆时针方向沿
的三边循环运动,经过多长时间点
与点
第一次相遇?此时它们在哪条边上?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81f53cf72912b0087808e95df199657.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f9a9781bcf32e907bdd3170261648a.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61e2b3a51a916809269d50747ffd270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)设运动时间为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
(2)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01723eb18ce33e858fa91510ca06e1a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/2020/7/4/2498576916111360/2499307637104640/STEM/f2979a92-babb-43c2-abc0-5354401d6234.png?resizew=206)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】图1、图2是两张形状大小完全相同的方格纸,方格纸中的每个小正方形的边长均为1,线段
的端点均在小正方形的顶点上,请仅用无刻度的直尺在网格内完成下列作图:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/8d17b7ab-9d7a-4911-997e-bf6c6fdc2b1f.png?resizew=553)
(1)如图1,请以线段
为斜边作等腰直角
;
(2)如图2,请以线段
为底边作等腰
,且使得腰长为有理数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/8d17b7ab-9d7a-4911-997e-bf6c6fdc2b1f.png?resizew=553)
(1)如图1,请以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图2,请以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】以点A为顶点作两个等腰直角三角形(
,
),
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/4/ed141fb5-9c5b-424b-af95-20cf1b0b5c0e.jpg?resizew=503)
(1)如图1所示放置,使得一直角边重合,延长
,交
于点F,试说明
.
(2)如图2所示放置,连接
与
相交于点F,
①
与
的大小有什么关系,请说明理由.
②
与
的位置有什么关系,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/4/ed141fb5-9c5b-424b-af95-20cf1b0b5c0e.jpg?resizew=503)
(1)如图1所示放置,使得一直角边重合,延长
![](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/52273305805769a438772342b53c289e.png)
(2)如图2所示放置,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系中,一次函数
的图象与正比例函数
的图象交于点
,设一次函数
的图象与
轴交于点
,与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/1bda4536-316c-4bc3-9b6f-a81145a67288.png?resizew=150)
(1)求
,
的值;
(2)求点
,点
的坐标;
(3)在
轴上是否存在点
使
为等腰三角形,若存在,请求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d67d534b258dc1774320f6138f486a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3956b653921dff43c77ce15f89e6944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d67d534b258dc1774320f6138f486a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/1bda4536-316c-4bc3-9b6f-a81145a67288.png?resizew=150)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐3】如图,在平面直角坐标系中,
的顶点O为坐标原点,
,边
在x轴的正半轴上,边
在y轴的正半轴上,点A的坐标为
,且
,动点C从点B出发沿着射线
的方向以每秒1个单位长度的速度匀速运动,动点D从点A出发沿着射线
的方向以每秒2个单位长度的速度匀速运动,已知点C和点D同时出发,设它们的运动时间为t秒(
).
![](https://img.xkw.com/dksih/QBM/2021/1/6/2630212692574208/2634005965201408/STEM/bbf20b64-6a3f-4e01-8ff4-cc984d47c62a.png)
(1)请直接写出线段
的长__________和点B的坐标__________;
(2)当
时,连结
,求点C的坐标和
的长:
(3)当
为等腰三角形时,请直接写出t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a80d4477c5fa6dc0a2f61003cf060a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f11cd98a1aa440491c95af505b2a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b136c45d114d9432aa492909cda4f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://img.xkw.com/dksih/QBM/2021/1/6/2630212692574208/2634005965201408/STEM/bbf20b64-6a3f-4e01-8ff4-cc984d47c62a.png)
(1)请直接写出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be86349e06431647f8e359d9bd07700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/648cf8ab7773bbd7320ce7c51188ff2d.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图所示,线段
的两端点 E,F分别是正方形
的边
,
的中点,请仅用无刻度的直尺,分别按下列要求作图(保留作图痕迹, 不写作法)
(1)在图(1)中,以
为较长对角线画菱形
;
(2)在图(2)中,以
为较长对角线画菱形
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](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/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/4a95e5cb-af49-4341-afa2-bcb7623becb2.png?resizew=303)
(1)在图(1)中,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5406e7922357e0396a651e0cda56de93.png)
(2)在图(2)中,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27bfdde37f91c7ca463656f8762d4a7.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图所示,网格线交点为格点,
,请用无刻度的直尺在网格中完成下列画图,保留连线的痕迹,不要求说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/c874f428-1a9f-494e-aa08-b0f216c4141d.png?resizew=224)
(1)在图1中作
的中线
;
(2)如图1,在
上取点E,使
;
(3)在图2中作
的角平分线
;
(4)如图2,作格点G,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/c874f428-1a9f-494e-aa08-b0f216c4141d.png?resizew=224)
(1)在图1中作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f913298f0fae9f55377a8deab9f099dd.png)
(3)在图2中作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
(4)如图2,作格点G,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6adbbdf08b1ffd3f13cc49017dc2f3.png)
您最近一年使用:0次