如图,将矩形ABCD沿AE折叠,使点D落在BC边的点F处.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/3/9553aa33-4ba5-4844-bfec-73fb382ccea6.png?resizew=178)
(1)求证:△ABF∽△FCE;
(2)已知AB=3,AD=5,求
的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/3/9553aa33-4ba5-4844-bfec-73fb382ccea6.png?resizew=178)
(1)求证:△ABF∽△FCE;
(2)已知AB=3,AD=5,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330918abdce072a32af4a7ce6c1e8571.png)
21-22九年级上·陕西西安·期末 查看更多[5]
陕西省西安市长安区2021-2022学年九年级上学期期末数学试题2022年浙江省杭州市名校中考数学模拟试卷(已下线)(挑战压轴)专项6.4 相似三角形(一线三等角综合应用)-2022-2023学年九年级数学下册《同步考点解读·专题训练》(苏科版)(已下线)(挑战压轴)专项27.4 相似三角形-一线三等角综合应用-2022-2023学年九年级数学下册《同步考点解读·专题训练》(人教版)陕西省西安市远东二中2023-2024学年九年级上学期月考数学试题
更新时间:2022-07-31 07:08:44
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】如图,四边形
是
的内接四边形,
,
,
,
.
(1)求边
的长;
(2)若
与
关于直线
对称,连接
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15416b74b2ecbcfa38cf34a9ffff730.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/7/b94046b3-4e55-4c78-bd86-e7c46bb74089.png?resizew=129)
(1)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.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,在等腰直角三角形
中,
,
,直线
交
于点
,
.
是射线
一点,连接
和
,其中
交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/a50ff947-0856-4344-a937-725b40ad6bf9.png?resizew=288)
(1)如图1,当
时.
①求
的度数;
②求
的值;
(2)如图2,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886d3f9d72d99005a9694c9ad8a6f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85606e0da32c310498a087179d247b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/a50ff947-0856-4344-a937-725b40ad6bf9.png?resizew=288)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014fc52a56af557331b6f92c1de46a78.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28537fd3056afc85c8f671e0756666f0.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bd59e5db199b4133db4ad64aae06bd.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f29779edb82350349f2c4883180f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2abe5da7ee1a2ff3ca5dec7a2d04dc.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,在平面直角坐标系中,点A、C的坐标分别为
和
,把矩形
沿对角线
所在的直线折叠,点B落在点D处,
与y轴相交于点E.
;
(2)求点E的坐标;
(3)若点F在线段
上,且F点的坐标为
时,连接
.试证明四边形
是菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9ee0ee7f51cfe25a00eda7b361372c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3d340164dfd68dea34c19c063960e6.png)
(2)求点E的坐标;
(3)若点F在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1beb189381103ad1e758fd8cfedb6355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c29ef6a52a1f2a7636105de375b7f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】在平面直角坐标系中,已知矩形
中,边
,边
,且
分别在x轴、y轴的正半轴上,点A与坐标原点重合.将矩形折叠,使点A落在边
上,设点
是点A落在边
上的对应点.
沿直线
折叠时(如图1),则点
的坐标为( , ),b的值为 ;
(2)当矩形
沿直线
折叠时,
①点
的坐标为 (用k表示);
②求出b和k之间的关系式;
③如果折痕所在的直线与矩形的位置如图2,求这种情形时k的取值范围;
④如果折痕所在的直线与矩形的位置如图3时,k的取值范围是 ;如图4时,k的取值范围是 .(直接填写结果,不写过程)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce8ebe684ab4fd905deddd160462847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15206717884bea18dfe2d7099489f849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
(2)当矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
②求出b和k之间的关系式;
③如果折痕所在的直线与矩形的位置如图2,求这种情形时k的取值范围;
④如果折痕所在的直线与矩形的位置如图3时,k的取值范围是 ;如图4时,k的取值范围是 .(直接填写结果,不写过程)
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、图③均是5×5的正方形网格,每个小正方形的边长均为1,其顶点称为格点,△ABC的顶点均在格点上.只用无刻度的直尺,在给定的网格中,按下列要求作图,保留作图痕迹.
(1)网格中
的形状是;
(2)在图①中确定一点D.连结
、
,使
与
全等;
(3)在图②中
的边
上确定一点E,连结
,使
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/3/733ba9e5-4262-4463-9387-ed5c475b3bb9.png?resizew=266)
(1)网格中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)在图①中确定一点D.连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)在图②中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac2fba5cc3ed36e0be1e1e2cdfa7ec0.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
真题
【推荐2】如图,四边形
是矩形,直线
垂直平分线段
,垂足为
,直线
分别与线段
、
的延长线交于点
、
.
(1)
与
相似吗?为什么?
(2)试判定四边形
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/20/a9fe86e6-01a4-4342-bcb6-6b11cf208ef3.png?resizew=229)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef81b7ad247ddf6d340d715f225c3cf.png)
(2)试判定四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9766e5eb6796dafc5ffe212afdfc43c0.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在Rt△ABC中,∠ACB=90°,AC=3,BC=4. 点D和点E分别为AC和BC的中点,连接DE. 点P从点A出发,以每秒3个单位长度的速度沿AB方向运动,过点P作PF垂直于AB交折线AC——CB于点F,以PF为一边向PF的右侧作正方形PFGH. 设点P的运动时间为t秒(t>0).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/24/2c2f4ba2-cc79-4650-9d4a-30e68f68b97b.png?resizew=169)
(1)DE的长为 .
(2)当点F在AC边上时,且DE=3PF,求t的值.
(3)当点E落在正方形PFGH内部时,求出t的取值范围.
(4)当线段DE将正方形PFGH的PF边分成两部分之比为
时,直接写出t的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/24/2c2f4ba2-cc79-4650-9d4a-30e68f68b97b.png?resizew=169)
(1)DE的长为 .
(2)当点F在AC边上时,且DE=3PF,求t的值.
(3)当点E落在正方形PFGH内部时,求出t的取值范围.
(4)当线段DE将正方形PFGH的PF边分成两部分之比为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.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,某景区的两个景点
、
处于同一水平地面上,一架无人机在空中飞行至点
处时,测得景点
的俯角为45°,景点
的俯角为知75°,已知点
与
在同铅直平面内,两景点
、
间的距离为100米,求无人机与景点
的距离
为多少米?(结果保留根号)
![](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/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/f52a58fbaf4fea03567e88a9f0f6e37e.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://img.xkw.com/dksih/QBM/2020/4/24/2448428068839424/2449563796307968/STEM/9141ae07350744519fd5779bb548b53c.png?resizew=162)
您最近一年使用:0次