如图,在
中,
,
,点
是
上一点,且
,过点
分别作
,
,垂足分别是点
,
,下列结论:①
;②点
是
的中点;③点
是
的中点;④
.其中正确的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/1/fcf974f6-ff7d-409a-be8a-9a4add9f2b53.png?resizew=106)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee54b9b398ce80cd054b56173fe810f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78002bca853929365a3f58082f3e7637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d276d0010fd458383ea3dd61415e1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faabc484ce3666706c1beffda4bcfe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193fde65db435cd4ab37315e6cef7b6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/1/fcf974f6-ff7d-409a-be8a-9a4add9f2b53.png?resizew=106)
A.1个 | B.2个 | C.3个 | D.4个 |
更新时间:2024-04-01 19:06:11
|
相似题推荐
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】如图,在
中,
,
是
的角平分线,若
,
,则
的面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/567a936e-154b-4a09-97ee-97608f3cf6f7.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.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/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/567a936e-154b-4a09-97ee-97608f3cf6f7.png?resizew=199)
A.24 | B.12 | C.15 | D.10 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,在
中,
,作
的垂直平分线,交
于点D,交
于点E,若
,则
的长度是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/972a6c50-9710-4fd9-960f-45c2ebeb0fc4.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb3b624bd44367f3563a466b4fb7e80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/972a6c50-9710-4fd9-960f-45c2ebeb0fc4.png?resizew=154)
A.2 | B.1 | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐1】如图, 已知
中,
为
内一点, 过点
的直线
分别交
于点
.若M在
的中垂线上,
在
的中垂线上,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/f052460e-ce56-436e-a1a1-f01fc5909881.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dfc3b9d7f07b52a69ceecbc36a1808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095177d95e8470f69a2bb9718f05ee65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dfc3b9d7f07b52a69ceecbc36a1808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8318a8cca48373f98a1b7c2e05cc1e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c0ca2fb042db1392b464fc56868672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881fdca549c62abdcf6a65f8978d9296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84ae3dcec1ea7407a6c30b7005a8543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c1375c64dceef45846308a418cf7f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/f052460e-ce56-436e-a1a1-f01fc5909881.png?resizew=158)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,在△ABC中,点E,F分别是边BC上两点,ED垂直平分AB,FG垂直平分AC,连接AE,AF,若∠BAC=115°,则∠EAF的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/25/c323689d-a705-4e40-a3f4-1d25bf7a6e9e.png?resizew=270)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/25/c323689d-a705-4e40-a3f4-1d25bf7a6e9e.png?resizew=270)
A.45° | B.50° | C.60° | D.65° |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】如图
,E、F分别是
的中点,若
,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/2022/12/8/3126292012343296/3128639233277952/STEM/108613ca3bd74116bff58491b4830570.png?resizew=202)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78e297915d9058d34dff8b45a181086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d73b0b70e67d7da0106ef366b1ff8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://img.xkw.com/dksih/QBM/2022/12/8/3126292012343296/3128639233277952/STEM/108613ca3bd74116bff58491b4830570.png?resizew=202)
A.12 | B.30 | C.27 | D.32 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图长方形
中,
,将此长方形折叠,使点B与点D重合,折痕为
,则△
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713c502e73cb50e01ce30bb44f5c7207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
A.6 | B.![]() | C.![]() | D.12 |
您最近一年使用:0次