如图,
中,
,
,点D在
边上,
,以
为边作等边
,
交
于点F,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0ae4cbcb17fb28faf2831933883bf0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42b730d87bb95763a48c69f1b0329ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0ae4cbcb17fb28faf2831933883bf0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/3/f625ac27-7ae2-4634-b54b-65381475956f.png?resizew=160)
更新时间:2023-06-01 09:40:31
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【推荐1】如图,
为线段
上一动点(不与点
,
重合),在
同侧分别作等边
和等边
,
与
交于点
,
与
交于点
,
与
交于点
,连接
,
,以下五个结论:①
;②
;③
;④
;⑤
平分
.一定成立的结论有___________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f80f699558ff62a31152df321b064f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cea21be341341c2a8ed360e04e87ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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【推荐2】如图所示,已知边长为2的正三角形ABC中,P0是BC边的中点,一束光线自P0发出射到AC上的P1后,依次反射到AB、BC上的点P2和P3,且1<BP3<
(反射角等于入射角),则P1C的取值范围是_____ .
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【推荐1】图1是某个零件横截面的示意图,已知
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【推荐2】如图,
中,
,
,
,P是
上方一动点,射线
,连接
交
的外接圆于点D,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eac21b9760772dbb7426e5b27c2f218.png)
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【推荐1】如图,菱形
中,
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、
分别为边
、
上的点,且
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、
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,连接
交
于点
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,②
,③
,④
中,正确的是________ .(填序号)
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【推荐2】如图是一个小圆同学设计的一个鱼缸截面图,弓形
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与弦
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部分不注水,已知
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为________
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【推荐1】如图,
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、
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交
于点G,连接
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是矩形;②
是等腰直角三角形;③若
,则
;④若正方形边长为2,则
的最小值为
;其中正确的序号有__________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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名校
【推荐2】如图在正方形
中,
,点E是
上一动点,点F在
上,且
,过点B作
交
于点G,垂足为点M:
的中点时,则
的长为____________ ;
(2)连接
,则
的最小值为___________ ;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
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