如图1是我们生活中的一种遮阳伞,如图2是它的骨架示意图,点
在伞柄(
)上下滑动时,骨架可以伸缩,关闭遮阳伞后,
三点重合,点
与点
重合,四边形
和四边形
都是平行四边形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/c0324e95-7521-47bc-91e2-4d6e9ab76b45.png?resizew=356)
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b1fce5acb99c537df69d9d66141305.png)
____________ cm.
(2)若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3943224ebad9517a0611e0a0b039952.png)
____________ cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82939c8ca679be64d0d9bfcf64ea2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e27b886fd290425249e1f417a08e33d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfe6362e241ce790c6c30dfdfe72f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c58d528bdde285d3583cd6a144a251.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/c0324e95-7521-47bc-91e2-4d6e9ab76b45.png?resizew=356)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b1fce5acb99c537df69d9d66141305.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ca0f2b2b40440365fcce22ac32c0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c812cd8ad4f00491376b2b547f1c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3943224ebad9517a0611e0a0b039952.png)
更新时间:2023-09-07 21:34:58
|
相似题推荐
填空题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系中,点A,A1,A2,…在x轴上,分别以OA,AA1,A1A2,…为边在第一象限作等边△OAP,等边△AA1P1,等边△A1A2P2,…,且A点坐标为(2
,0),直线y=kx+
(k>0)经过点P,P1,P2,…,则点P2022的纵坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3f8c3ba00c59e0634ed10fa85289de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103070abee09399f1e9510a75c3ba9e8.png)
![](https://img.xkw.com/dksih/QBM/2022/1/14/2894204397584384/2899053172498432/STEM/bc724e68-7345-4324-a71a-c18c0d875349.png?resizew=232)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,
是
上任意一点,点
在
外,已知
,
是等边三角形,则
的面积的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f9b1e3b8111d1f8650f2d7147c4423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/48a346e3-8c1e-4951-92f6-d8eb58b929dc.png?resizew=150)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】如图,
中,
,
,
是
的角平分线,
是
上的动点.
,则
的长度为______ ;
(2)若
是
边上的动点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8817091d0f4b7d7ac6df560cb63c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39c575ff273a5795bdf7e0a6f59c169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e246bfce726aedecbbfc92286be4855.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】在
中,
,
,
,点P是
外一点,且
,则CP的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】已知在平面直角坐标系
中,四边形
是平行四边形,
,点B的坐标为
,则
的周长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241832fba1fb0325dd221d06fee3eaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe0ad234feb7b2f585d57f481a658a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e698404fde91350c873592032ea5326.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/4/5ed27f41-e61a-4bf7-b2cf-bc1ff3befad5.png?resizew=134)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】如图,平行四边形ABCD中,AC,BD相交于点O,E是AB的中点,若OE=6,则AD=_____ .
![](https://img.xkw.com/dksih/QBM/2022/5/3/2971645416816640/2974266382508032/STEM/04106526d9e741e098b10ded1f1656d3.png?resizew=194)
您最近一年使用:0次