如图,P是等边三角形ABC内一点,将线段AP绕点A顺时针旋转60°得到线段AQ,连接BQ.若PA=6,PB=8,PC=10,则四边形APBQ的面积为______ .
![](https://img.xkw.com/dksih/QBM/2018/4/16/1925358141726720/1929655888494592/STEM/a0a17e17830c4efd81096e189ceddebb.png?resizew=173)
2017高三·全国·专题练习 查看更多[1]
(已下线)《2017届优生百日闯关系列》【专题一】第五关 以几何图形中的图形操作与变换问题为背景的选择填空题
更新时间:2018-04-22 17:17:51
|
【知识点】 几何证明选讲
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】选做题:(A)(坐标系与参数方程)在极坐标系中,过圆
的圆心,且垂直于极轴的直线的极坐标方程为_______________ ;
(B)(不等式选讲)已知关于
的不等式
(
是常数)的解是非空集合,则
的取值范围_______________ ;
(C)(几何证明选讲)如图:若
,
,
与
交于点
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958154c60b96746f5e68f0d529029a12.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cda90ec15c07139032c7fed43bcc385.png)
(B)(不等式选讲)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fee910d935b6d841d8c783e10b680a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(C)(几何证明选讲)如图:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4d19bf237a6fca67e0d01a9ddb726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f616b35f456fd8315f9bcd9fe4415b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b336e518ac4ff04c6c26e4b8a15844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0f73b3c63084d9c032802e01f9a168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958154c60b96746f5e68f0d529029a12.png)
![](https://img.xkw.com/dksih/QBM/2011/5/23/1570219586486272/1570219591729152/STEM/3fba0c8da4ba4023af55e68d44178770.png?resizew=234)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
【推荐2】如图,在矩形纸片ABCD中,AB=2,AD=3,点E是AB的中点,点F是AD边上的一个动点,将△AEF沿EF所在直线翻折,得到△A′EF,则A′C的长的最小值是______ .
![](https://img.xkw.com/dksih/QBM/2018/4/16/1925358351671296/1930322234564608/STEM/4385217709f5468ea1b94fd42d73077c.png?resizew=181)
您最近一年使用:0次