如图,在菱形ABCD中,AC、BD交于点O,BC=5,若DE∥AC,CE∥BD,则OE的长为_____ .
![](https://img.xkw.com/dksih/QBM/2019/9/19/2294085162860544/2294320188473344/STEM/dc08888bff36456c8598fbdf655ee6f7.png?resizew=190)
18-19八年级下·吉林·期末 查看更多[6]
更新时间:2019-09-20 15:35:57
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【推荐1】如图,M为双曲线
(
)上的一点,分别交直线
于点D、C两点.若直线
与y轴交于点A,与x轴交于点B,则
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【推荐2】如图,在矩形
中,
,
,点
、
分别是边
、
的中点,某一时刻,动点
从点
出发,沿
方向以每秒
个单位长度的速度向点
匀速运动;同时,动点
从点
出发,沿
方向以每秒
个单位长度的速度向点
匀速运动,其中一点运动到矩形顶点时,两点同时停止运动,连接
,过点
作
的垂线,垂足为
.在这一运动过程中,点
所经过的路径长是 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐1】已知:直线
与x轴、y轴分别交于点A、点B,当点P在直线
上运动时,平面内存在点Q,使得以点O、P、B、Q为顶点的四边形是菱形,请你写出所有满足条件的点Q的坐标______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec89d17a1b8f7961e2f1f27c2d50685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐2】如图,菱形ABCD的面积为
,∠A=120°,点M,N,P分别为线段BC,CD,BD上的任意一点,则PM+PN的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718894332911616/2782443426111488/STEM/6ae913a9acdc48ba850a67256a596dc8.png?resizew=169)
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