图①、图②、图③均是
的正方形网格,每个小正方形的边长均为1,每个小正方形的顶点称为格点,
的顶点均在格点上,只用无刻度的直尺,在给定的网格中,分别按下列要求画图,保留适当的作图痕迹.
(1)在图①中画线段
,点E在
边上、点F在
边上,且
;
(2)在图②中的线段
上找一点O,使
;
(3)在图③中画一条线段
、将线段
分为
两部分.(要求:点M、N均在格点上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd4be97adde17423d59d86d18318c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/0f4a36fa-9b7d-4268-b677-f71521f98830.png?resizew=440)
(1)在图①中画线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a4c9a32fe02c162f0521a0a01be263e.png)
(2)在图②中的线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea76d20f1b5236411cda78c91e55ec5d.png)
(3)在图③中画一条线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf17ea1e2af6141441bd2f6e93314be9.png)
更新时间:2023-09-12 09:38:15
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】已知
中,
分别平分
和
,
交于点O.
![](https://img.xkw.com/dksih/QBM/2022/11/11/3107238521577472/3135049228394496/STEM/17317d4c8a8146a8a909cd64b1412766.png?resizew=145)
(1)直接写出
与
的数量关系;
(2)若
,利用(1)的关系,求出
的度数;
(3)利用(2)的结果,试判断
的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/692c58a2af64d705cd4a988ed2bfbc3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a03841966d8142fa4a4aed023e37931.png)
![](https://img.xkw.com/dksih/QBM/2022/11/11/3107238521577472/3135049228394496/STEM/17317d4c8a8146a8a909cd64b1412766.png?resizew=145)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb52ca9f6cc798309656837933132505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ccdccf6ca4ab39cc41fe3f7afc2846d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
(3)利用(2)的结果,试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1f0c305a410139df66e6e754574f33.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,两根旗杆相距
,某人从
点沿
走向
点,一段时间后他到达点
,此时他仰望旗杆的顶点
和
,两次视线的夹角为
,且
,已知旗杆
的高为
,该人的运动速度为
,求:
![](https://img.xkw.com/dksih/QBM/2022/11/23/3115945729114112/3124997201903616/STEM/1d401fd4a9ca4ac09be0461f2bd534b4.png?resizew=165)
(1)这个人从
点到
点运动了多长时间?
(2)
与
存在什么数量关系?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e978c77cb0d7eff794447241e9829867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d8edb7990821170544be38a6d2e130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36b51b654efcff60d2d640b9b4c4471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbbf7f3cf53f2ff2c9874b4895fcae7.png)
![](https://img.xkw.com/dksih/QBM/2022/11/23/3115945729114112/3124997201903616/STEM/1d401fd4a9ca4ac09be0461f2bd534b4.png?resizew=165)
(1)这个人从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐3】如图,在平行四边形
中,点E在对角线
上,小谷想在平行四边形
里面再剪出一个以
为边的平行四边形,小谷的思路是:在
的左侧作
,将其转化为证明三角形全等,通过一组对边平行且相等的四边形是平行四边形使问题得到解决,请根据小谷的思路完成下面的作图与填空.
(1)用尺规完成以下基本作图:在
左侧作
,使
,
与对角线
交于点F,连接
.(保留作图痕迹,不写作法,不下结论)
(2)根据(1)中作图,求证:四边形
为平行四边形.
证明:∵四边形
为平行四边形,
∴
,① .
∴② .
在
与
中,
∵
,
∴
.
∴
,③ .
∴
,即
,
∴④ .
∴四边形
为平行四边形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2045a3a07fcdf5e8308da4951090eef5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/14/2e9a8594-ba72-4677-86d9-fe88d86326a4.png?resizew=191)
(1)用尺规完成以下基本作图:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd94dd51562ecbee6edd4265326b765.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2045a3a07fcdf5e8308da4951090eef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bda6d7771fa9875d07379cfdb3e380e.png)
(2)根据(1)中作图,求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
证明:∵四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
∴② .
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c771a4feb150ad9cff8d70431c97eb17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473bc8c16695f150a3f387a43eabcc9b.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b99a81e9cab88f09c1009e46a3853c4b.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f000632c1794058b04262190e00b028a.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335d08afb9fddc585cc7f609dca887b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cb521079f1fa38b7831f882b93df2d.png)
∴④ .
∴四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图1,正方形
中,E、F分别是
上的点,且满足
,连接
,交点为O,
![](https://img.xkw.com/dksih/QBM/2023/4/5/3209831408803840/3217012301438976/STEM/f970f711d6634bcda11ec7e5e34fcb41.png?resizew=267)
(1)请判断
与
的关系,并证明你的结论.
(2)如图2,连接BE、EF,若G、H、P、Q分别是
的中点,试说明四边形
是正方形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64dde15423371c3d9289f97efbcd36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a3600b1760a63a10c9a0429b439dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec00b62106276a663960c688e0a22f76.png)
![](https://img.xkw.com/dksih/QBM/2023/4/5/3209831408803840/3217012301438976/STEM/f970f711d6634bcda11ec7e5e34fcb41.png?resizew=267)
(1)请判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
(2)如图2,连接BE、EF,若G、H、P、Q分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c5a5d3234cd00942464dd2cb7f5974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b92a95f86be61b826727d2bfef9dc1.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,将线段
绕点A逆时针旋转
度(
)得到线段
,连结
,点N是
的中点,点D,E分别在线段
,
的延长线上,且
.
________(用含
的代数式表示);
(2)连结
,点F为
的中点,连接
,
,
.
①依题意补全图形;
②若
,用等式表示线段
与
的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e915c7310f3781887a1afb99dbf949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686171942bd7698035016c732db43b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06df3b822800139fd3ba2cb1ceaeaf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)连结
![](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/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360496a4f5cc8a5faca5e089ae4f9531.png)
①依题意补全图形;
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac559a1a89bfb16e1c44cdd7ad2f2bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360496a4f5cc8a5faca5e089ae4f9531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,AB 是⊙ O 的直径,点 C 是⊙ O 上的一点,点 D 是弧 BC 的中点,连接 AC, BD,过点 D 作 AC 的垂线 EF,交 AC 的延长线于点 E,交 AB 的延长线于点 F..
(1)依题意补全图形;
(2)判断直线 EF 与⊙ O 的位置关系,并说明理由
(3)若 AB=5,BD=3,求线段 BF 的长
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/2/0549e14a-2778-4383-9bec-cdcceab44b25.png?resizew=125)
(1)依题意补全图形;
(2)判断直线 EF 与⊙ O 的位置关系,并说明理由
(3)若 AB=5,BD=3,求线段 BF 的长
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】在6×6的正方形网格中,△ABC的顶点均在格点上,请用无刻度直尺画图.(保留必要的画图痕迹)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/00e0439c-784f-4d36-bf14-1f5107d66ea0.png?resizew=512)
(1)在图1中,画一个与∠BAC相等的∠BDC,且点D在格点上.
(2)在图2中,画一个与△ABC面积相等,且以BC为边的平行四边形BCDE,D、E均在格点上.
(3)在图3中,在AC上找一点D,连接BD,使△ABD的面积是△BCD面积的4倍.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/00e0439c-784f-4d36-bf14-1f5107d66ea0.png?resizew=512)
(1)在图1中,画一个与∠BAC相等的∠BDC,且点D在格点上.
(2)在图2中,画一个与△ABC面积相等,且以BC为边的平行四边形BCDE,D、E均在格点上.
(3)在图3中,在AC上找一点D,连接BD,使△ABD的面积是△BCD面积的4倍.
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