如图,分别是平行四边形置于平面直角坐标系中,请你来探究这些平行四边形的顶点坐标特点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/3bbc9881-39f4-4708-b77d-4e0bb9447f5e.png?resizew=472)
(1)如图(1),已知点
,
,
,则平行四边形ABCD点D的坐标是______;
(2)如图(2),已知点
,
,
,求平行四边形ABCD点D的坐标;
(3)如图(3),已知点A,B分别在轴,x轴的正半轴,C的坐标是
,现将平行四边形OABC向上平移
个单位得到平行四边形
,请问
能否成为等腰三角形,如果能,请直接写出点
的坐标;如果不能,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/3bbc9881-39f4-4708-b77d-4e0bb9447f5e.png?resizew=472)
(1)如图(1),已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0555b36615216c8c38b450b13d5a1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a9b4bd32bb2bc5df7bba32f7dededf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ece4faf34012fe1b1f3077fcba2cb2e.png)
(2)如图(2),已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19be7df4dc8fcc4d85c5fc0301aff07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a9b4bd32bb2bc5df7bba32f7dededf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fb8683deb893ffa7788da75c958c30.png)
(3)如图(3),已知点A,B分别在轴,x轴的正半轴,C的坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5577421c8d1403c6c9dcaca8ead8efac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8959df3d0ba711e2d9558438ecb4cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352529b508315e10a9a078898c2ae8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17feedef8b38275d0b9bf982a5478ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
21-22八年级下·江西吉安·期末 查看更多[2]
更新时间:2022-09-02 22:06:41
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解答题-证明题
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适中
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【推荐1】如图所示,在
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解答题-证明题
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【推荐2】原题:已知△ABC中,AB=AC,求证∠B=∠C有一个聪明的同学的证法很简单,就是证明△ABC ≌ △ACB,就得到了∠B=∠C.请你完成他的步骤.
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解答题-作图题
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适中
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【推荐1】如图,四边形
是平行四边形,
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/3bc9d9ea-dce1-4b53-a7aa-0032f2f4db69.png?resizew=175)
(1)填空:
________;
________;
(2)在图中求作:
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(3)若
,
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/3bc9d9ea-dce1-4b53-a7aa-0032f2f4db69.png?resizew=175)
(1)填空:
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(2)在图中求作:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ff164ebf8edf170396071a7c5d9a3.png)
(3)若
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解答题-证明题
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适中
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【推荐2】如图,
为
的弦,
为
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为
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与
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并延长,交
于点
,交直线
于点
.
;
(2)若
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362c4d75eb454999096412d20bd1ba00.png)
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解答题-问答题
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适中
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【推荐1】如图,在平行四边形
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解答题-作图题
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适中
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名校
【推荐2】如图
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中,以
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(2)在图
中,以
为一边画一个面积为
的
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(3)直接写出线段
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(2)在图
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(3)直接写出线段
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解答题-作图题
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适中
(0.65)
【推荐1】如图,
中,
,
,
是
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的对应点
的坐标为
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(1)作出
平移之后的图形
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、
两点的坐标分别为
______,
______;
(2)
为
中任意一点,则平移后对应点
的坐标为______;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
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(1)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c812613b1a8090215b7316dde5e9753.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】△ABC在平面直角坐标系中的位置如图所示.
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896531723247616/2926886848798720/STEM/56cefc4574cc4579b29bed2c35b3fc60.png?resizew=324)
(1)作出△ABC关于y轴对称的三角形△A1B1C1;将△ABC向下平移3个单位长度,画出平移后的△A2B2C2
(2)写出A1 ,A2的坐标:A1 ( ),A2( )
(3)求△A2B2C2的面积.
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896531723247616/2926886848798720/STEM/56cefc4574cc4579b29bed2c35b3fc60.png?resizew=324)
(1)作出△ABC关于y轴对称的三角形△A1B1C1;将△ABC向下平移3个单位长度,画出平移后的△A2B2C2
(2)写出A1 ,A2的坐标:A1 ( ),A2( )
(3)求△A2B2C2的面积.
您最近一年使用:0次