画图题:如图,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/21/6d8d5fdc-dbb9-46db-b72f-9186bb32105d.png?resizew=181)
(1)画AE⊥BC于E,AF⊥DC于F.
(2)画DG
AC交BC的延长线于G.
(3)经过平移,将△ABC的AC边移到DG,请作出平移后的△DGH.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/21/6d8d5fdc-dbb9-46db-b72f-9186bb32105d.png?resizew=181)
(1)画AE⊥BC于E,AF⊥DC于F.
(2)画DG
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
(3)经过平移,将△ABC的AC边移到DG,请作出平移后的△DGH.
更新时间:2017-04-02 13:30:18
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解答题-问答题
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【推荐1】如图,在三角形
中,C、D、F分别是三边上的点,
,
.
与
的位置关系,并说明理由;
(2)若
,
,求
的度数.
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(2)若
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解答题-证明题
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【推荐2】已知:AB∥CD,直线EF分别交AB、CD于点E、F,直线GH分别交AB、CD于点G,H.
![](https://img.xkw.com/dksih/QBM/2021/7/15/2764941456244736/2817203824091136/STEM/8c4b1641-3212-4a8d-bebd-e5fff928467a.png)
(1)如图1,若∠BGH=80°,∠BEF=120°,ME平分∠AEF,MH平分∠GHC,求∠EMH的度数;
(2)如图2,MH平分∠GHC,EN平分∠BEF交MH的延长线于N,探究∠MNE、∠BGH、∠BEF之间的数量关系,并证明;
(3)如图3,直线EF、GH交于点P,PQ平分∠FPH,FK平分∠PFC,过P作PO∥FK,探究∠QPO与∠PHC之间的数量关系,并证明.
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(1)如图1,若∠BGH=80°,∠BEF=120°,ME平分∠AEF,MH平分∠GHC,求∠EMH的度数;
(2)如图2,MH平分∠GHC,EN平分∠BEF交MH的延长线于N,探究∠MNE、∠BGH、∠BEF之间的数量关系,并证明;
(3)如图3,直线EF、GH交于点P,PQ平分∠FPH,FK平分∠PFC,过P作PO∥FK,探究∠QPO与∠PHC之间的数量关系,并证明.
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解答题-作图题
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【推荐1】如图,在边长为1个单位的正方形网格中,
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解答题-作图题
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【推荐2】如图为5×5的网格,每个小正方形的边长都是1,正方形的顶点称为格点,A,B,C都是格点.
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解答题-作图题
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