已知,如图,一条直线上有
三点,
,
,
为
的中点,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3433f3d99b827bb05e87d92faaf89f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f4a632c758fa973bc781cf9e7b5985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/3ce02441-05f1-4a7d-a5a6-435a4af8f047.png?resizew=255)
更新时间:2023-02-14 12:03:27
|
相似题推荐
解答题-作图题
|
较易
(0.85)
【推荐1】如图所示,已知线段
的长为
.
![](https://img.xkw.com/dksih/QBM/2020/9/27/2558837953626112/2559668780711936/STEM/31706d4b-3ef4-444e-858f-77a9625019a2.png)
(1)用直尺和圆规按所给的要求作图:点
在线段
的延长线上,且
;
(2)在上题中,如果在线段
上有一点
,且线段
、
长度之比为
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202fe36e78ac793101209ec64ebc5cf6.png)
![](https://img.xkw.com/dksih/QBM/2020/9/27/2558837953626112/2559668780711936/STEM/31706d4b-3ef4-444e-858f-77a9625019a2.png)
(1)用直尺和圆规按所给的要求作图:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00698dbee4319fc8d87ede6486f4b177.png)
(2)在上题中,如果在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5881f1ce9b4172ca346032d0fd1e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】动手操作题
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/fa1c76a8-8d89-4653-b111-c1c88a9bb523.png?resizew=368)
(1)如图,在平面内有3个点A、B、C.
①画线段
,并延长线段
到点D,使
.
②作射线
和直线
.
(2)已知线段a和b.
用尺规作一条线段
,使
要求保留作图痕迹,并在图中标出相应的线段.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/fa1c76a8-8d89-4653-b111-c1c88a9bb523.png?resizew=368)
(1)如图,在平面内有3个点A、B、C.
①画线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ddd49625097d0a78df7170be4f882e.png)
②作射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)已知线段a和b.
用尺规作一条线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a722e3ac69d477af1bf98b1a39c7014b.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐1】如图,已知数轴上的点A对应的数为6,B是数轴上的一点,且AB=10,动点P从点A出发,以每秒6个单位长度的速度沿着数轴向左匀速运动,设运动时间为t秒(t>0),
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/28/478f6e8a-0d52-4de3-b674-c2bd33335f8d.png?resizew=206)
(1)数轴上点B对应的数是 ,点P对应的数是 (用t的式子表示);
(2)动点Q从点B与点P同时出发,以每秒4个单位长度的速度沿着数轴向左匀速运动,试问:运动多少时间点P可以追上点Q?
(3)M是AP的中点,N是PB的中点,当点P在线段AB上运动时,线段MN的长度是否发生变化?若有变化,说明理由;若没有变化,请你画出图形,并求出MN的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/28/478f6e8a-0d52-4de3-b674-c2bd33335f8d.png?resizew=206)
(1)数轴上点B对应的数是 ,点P对应的数是 (用t的式子表示);
(2)动点Q从点B与点P同时出发,以每秒4个单位长度的速度沿着数轴向左匀速运动,试问:运动多少时间点P可以追上点Q?
(3)M是AP的中点,N是PB的中点,当点P在线段AB上运动时,线段MN的长度是否发生变化?若有变化,说明理由;若没有变化,请你画出图形,并求出MN的长.
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】如图,延长线段
到C,使
,点D是线段
的中点,如果
.
![](https://img.xkw.com/dksih/QBM/2022/12/13/3129855238504448/3141896902336512/STEM/96487c0935b745e2ac6889775a629f4b.png?resizew=205)
(1)求
的长度;
(2)若点E是线段
的中点,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05ce6ff5103e9675a7eed0d1c1ab932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c52b5f8acda412ddceb94c4e4e6b7f0.png)
![](https://img.xkw.com/dksih/QBM/2022/12/13/3129855238504448/3141896902336512/STEM/96487c0935b745e2ac6889775a629f4b.png?resizew=205)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若点E是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】如图,C是线段
上一点,M,N分别是
,
的中点.
(1)若
,
,求线段
的长;
(2)若线段
与线段
的长度之比为
,且线段
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/6/be72d308-1483-4443-b1ee-f06b9c6f789a.png?resizew=180)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccca804e291fd2ed7f029e623ffd3fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aac142d9f7eb8ee1cedc4db43a2c04b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e883f81c66ceef54d2d0556a68ed585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb85aa4871eb1dfb392613d429a9314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6099c5d8df7335e6aaf41afa2f10dfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4c23a2b5599e5957b9ba8bc62e1fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】按照下列要求完成画图及相应的问题解答.
(1)画直线
;
(2)画射线
;
(3)画线段
;
(4)取线段
的中点D,取线段
中点E,连接
;
(5)请测量线段
与线段
的长后说明线段
和线段
的数量关系.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/dd87190e-b08c-45bb-9e1e-f550b6049250.png?resizew=151)
(1)画直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)画射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(3)画线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(4)取线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(5)请测量线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次