如图,分别以
的边
,
所在直线为对称轴作
的对称图形
和
,
,线段
与
相交于点
,连接
、
、
、
.有如下结论:①
;②
;③
是等边三角形;④
.其中正确的结论个数是( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c786b48d3aff4d2f73f83cc1a32a094a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df96f073bbcf475cf3a4e2b3b7c7edf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2838dd84e1d2c9005852e141aa8251c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65020cf0cbc3874979c32fa4d3e9feb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/fbfae4f7-f426-4c08-ada3-6a1142dd08a5.png?resizew=191)
A.1 | B.2 | C.3 | D.4 |
更新时间:2023-11-20 10:27:00
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【推荐1】如图,在△ABC中,PM、QN分别是AB、AC的垂直平分线,∠BAC=100°那么∠PAQ等于( )
![](https://img.xkw.com/dksih/QBM/2019/3/11/2158381213097984/2161102253146112/STEM/136dd643a54a45328bfeac934df3c855.png?resizew=184)
![](https://img.xkw.com/dksih/QBM/2019/3/11/2158381213097984/2161102253146112/STEM/136dd643a54a45328bfeac934df3c855.png?resizew=184)
A.50° | B.40° | C.30° | D.20° |
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【推荐2】如图,在
中,
,
,
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平分
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于点F,交
于点E,点G为
的中点,连接
,交
于点H,下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/22/62f5f403-3070-4921-a616-9f347c2f8070.png?resizew=153)
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A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐1】如图, 在
中,
,
,
与
相交于点
,
于
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/24/510a4dd0-04ec-4f95-99ba-0a47a2312fa9.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
【推荐2】如图,四边形ABCD中,AC、BD是对角线,△ABC是等边三角形,∠ADC=30°,AD=2,BD=3,则CD的长为( )
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【推荐1】已知点
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在第( )象限
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6118ddee30fe69c03122987d80a3f923.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70092c62c713c1220016ccf236c8f6a.png)
A.一 | B.二 | C.三 | D.四 |
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【推荐2】如图,在矩形
中,
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.点E在边
上,且
,M,N分别是边
、
上的动点,P是线段
上的动点,连接
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