如图,在边长为1的小正方形网格中,点A,B,C均落在格点上.
(1)求△ABC的面积?
(2)画出△ABC关于直线l的轴对称图形△A1B1C1.
(3)在直线l上有一点P使PC+PB最小,请画出点P.
(1)求△ABC的面积?
(2)画出△ABC关于直线l的轴对称图形△A1B1C1.
(3)在直线l上有一点P使PC+PB最小,请画出点P.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/2f887274-2272-42a4-bb4e-9233fba85c4e.png?resizew=312)
更新时间:2021-09-26 22:28:28
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解答题-作图题
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【推荐1】
在平面直角坐标系中的位置如图所示,A、B、C三点在格点上.
![](https://img.xkw.com/dksih/QBM/2021/12/1/2863368324833280/2867402481377280/STEM/861a9b6c-dbad-48b4-9bec-400d8512f76b.png?resizew=314)
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(1)作出
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(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-作图题
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【推荐2】如图,在平面直角坐标系中,
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/350adeb0-a1f2-4595-abd9-d53a563efda8.png?resizew=307)
(1)请你画出
关于y轴的对称图形
,并写出顶点
的坐标;
(2)
的面积为______;
(3)若x轴上有一点P,使
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(1)请你画出
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(2)
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(3)若x轴上有一点P,使
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【推荐1】如图,点
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解答题-作图题
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【推荐2】如图所示,在边长为1的小正方形组成的网格中,
的三个顶点分别在格点上,请在网格中按要求作出下列图形,并标注相应的字母.
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758408993816576/2815926806257664/STEM/4aaab605609443f0a3ea78af017b2bb4.png?resizew=280)
(1)作
,使得
与
关于直线l对称;
(2)求
的面积;
(3)若点P是直线l上任意一点,则
的最小值是____________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758408993816576/2815926806257664/STEM/4aaab605609443f0a3ea78af017b2bb4.png?resizew=280)
(1)作
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(2)求
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(3)若点P是直线l上任意一点,则
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