用圆规、直尺作图,不写作法,但要保留作图痕迹.
如图,已知等腰三角形
的底边长为a,顶角
的角平分线长为b,求作:等腰三角形![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b014f52d4a9dede64e5df0a3c1bb253.png)
如图,已知等腰三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b014f52d4a9dede64e5df0a3c1bb253.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/11/6d6b37c9-f61a-4f7a-bb54-c7a8235f74db.png?resizew=272)
更新时间:2023-05-09 04:26:08
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解答题-作图题
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【推荐1】6×6的方格图中,按要求作格点三角形ABC.
(1)在图1中,作等腰直角△ABC,使得∠BAC=45°;(画出一个即可)
(2)在图2中,作钝角△ABC,使得∠BAC=45°.
(1)在图1中,作等腰直角△ABC,使得∠BAC=45°;(画出一个即可)
(2)在图2中,作钝角△ABC,使得∠BAC=45°.
![](https://img.xkw.com/dksih/QBM/2020/3/14/2419422488625152/2420274440437760/STEM/a4a92cf3cab54b218eaa646fdb2a88c7.png?resizew=279)
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解答题-问答题
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名校
【推荐2】如图,平面直角坐标系中,点
和
;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/6d330ad3-29c9-44f6-a043-11238fb10ec9.png?resizew=165)
(1)在
轴上求点
,使得
,请求出点
的坐标;
(2)在
轴上求点
,使得
,请求出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f94c4f6b762fddb0e313050ef6932eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/6d330ad3-29c9-44f6-a043-11238fb10ec9.png?resizew=165)
(1)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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解答题-证明题
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【推荐1】已知:如图等边△ABC,D是AC的中点,且CE=CD,DF⊥BE.求证:BF=EF.
![](https://img.xkw.com/dksih/QBM/2020/4/23/2447675901935616/2447889710153728/STEM/5c83ad320eca4ac6a4f0bda80d841dfb.png?resizew=160)
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