如图,方格纸中每个小正方形的边长均为1个单位长度,
的顶点均在小正方形的顶点上.
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963579275460608/2966637436575744/STEM/b3b9e31d-a540-4e73-a7a7-303de27fc92b.png?resizew=217)
(1)在方格纸中将
向下平移2个单位长度,再向右平移4个单位长度后得到
(点
的对应点是点
,点
的对应点是点
),在图中画出
;
(2)连接
,以
为直角边在图中画出等腰直角
,且
,
,并直接写出线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963579275460608/2966637436575744/STEM/b3b9e31d-a540-4e73-a7a7-303de27fc92b.png?resizew=217)
(1)在方格纸中将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28331ca4051cf57b90b369180c93263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28331ca4051cf57b90b369180c93263.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1bf8e099f556e942039390ba8c4632f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2d616800c1bb4f3f44588805df002e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ba21c4c61cdd0c6a7fa011211dfc45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
更新时间:2022-04-26 19:42:13
|
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解答题-问答题
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适中
(0.65)
【推荐1】如图,
中,
,
,
,
,AD平分
,交
于点D.动点Q从点B发,按
的折线路径,以每秒1个单位长度的速度运动,设运动时间为t秒.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/6a94e8a7-cd38-4b19-81e0-32f60d0bf6c6.png?resizew=258)
(1)当点Q在
边上运动时,线段![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
的长为______(用含
的代数式表示):
(2)当点Q在
边上运动时,线段
长度不可能是______(其序号即可).
①7.2; ②5.3; ③4.8; ④4.5.
(3)设
的面积为S,请用含t的代数式表示
.
(4)当
为轴对称图形时,请写出满足条件的t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af260e0d98c95d1e092dc4c6d348e3ea.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/addb8e20db1fbb40f17dea52f951b907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e8503959de9bcffd08d7da0ffea8a0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/6a94e8a7-cd38-4b19-81e0-32f60d0bf6c6.png?resizew=258)
(1)当点Q在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91cf2645cd16e3d97b290e2d722488d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)当点Q在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
①7.2; ②5.3; ③4.8; ④4.5.
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41984f53bb280ba8b5ac00a52ce2825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(4)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.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①,
是
的直径,
是弦,
与
交于点E.F是
延长线上的一点.给出下列信息:①
;②
是弧
的中点;③直线
是
的切线.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/c985927e-1175-4828-abf4-833007959daa.png?resizew=379)
(1)请在上述3条信息中选择其中两条作为条件,其余的一条信息作为结论,组成一个真命题 .你选择的条件是___________、___________,结论是___________(只要填写序号),并说明理由.
(2)在(1)的情况下,如图②,连接
,取
的中点G,连接
.若
,
,求
的长.
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab618c936da03808cb9953783d42b30.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/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/c985927e-1175-4828-abf4-833007959daa.png?resizew=379)
(1)请在上述3条信息中选择其中两条作为条件,其余的一条信息作为结论,组成一个
(2)在(1)的情况下,如图②,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
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您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,每个小正方形的边长均为1个单位长度,把三角形
先向右平移2个单位长度,再向上平移3个单位长度,得到三角形
点A,B,C分别对应点
、
、
).
(2)若
边上一点P经过上述平移后的对应点为
,用含x,y的式子表示点P的坐标;(直接写出结果即可)
(3)求出三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3629eebc4bfbc5ca088cc8698faf843a.png)
(3)求出三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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,
在平面直角坐标系中的位置如图所示,点
为坐标原点,
,
,
.
(1)在图中画出
向下平移
个单位,向右平移
个单位后的
;
(2)写出
,
,
三点的坐标;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166aadd89a2fa0c27558e879eb09a271.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/21/99f0327b-3ede-4556-95d2-48483c6afd9d.png?resizew=322)
(1)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
您最近一年使用:0次